Oliver Grayson/Synopsis

== Issue #26 ==
Omni-Man introduces his son, Oliver Grayson to Invincible. At the same time, Oliver Grayson is playing with his mother Andressa.
==Issue #27==
Invincible is surprised at the fact that he has a brother and Omni-Man admits that he is happy with his life on Thraxa. Omni-Man explains Oliver Grayson's biology to Invincible as why Oliver's skin is purple. Omni-Man states that Oliver is only 3 weeks old because Oliver's Thraxan DNA is accelerating the baby's age and it will later be slowed down by the Viltrumite DNA. The 3 Viltrumites eventually arrive on Thraxa, so Omni-Man fights them and Invincible helps Oliver Grayson and Andressa hide in the mines. Unfortunately Lucan spots Invincible, Andressa, and Oliver in the mines.
==Issue #28==
Invincible punches Lucan to distract him while Invincible takes Andressa and Oliver Grayson to escape Lucan. Invincible flies as fast as he can to protect Andressa and Oliver, but Lucan starts to catch up. Lucan almost grabs Invincible's leg, but is fortunately stopped by Omni-Man. Andressa tells Invincible what happened to Lucan and Invincible answers that Omni-Man saved them. Invincible then drops Andressa and Oliver to the ground to take a break from flying.
Invincible plans to stay down undercover on the ground, but Omni-Man wants Andressa and Oliver Grayson to go back to the mines. Omni-Man picks up Andressa while Invincible picks up Oliver Grayson. Omni-Man tells Invincible that if the Viltrumites find them, then Invincible should be ready to catch Andressa. Omni-Man gives Andressa to Invincible and Omni-Man wants Invincible to come follow him into the city once Invincible has dropped off Andressa and Oliver to the mines. Invincible drops off Andressa and Oliver back into the mines and then Invincible meets up with his father at the city.
==Issue #29==
In the next day, Invincible arrives back into the mines and reports to Andressa that the Viltrumites took Omni-Man.
==Issue #30==
Mark Grayson does what he can to repair the damage done to Thraxa by the Viltrumites and Andressa thanks Mark Grayson for his hard work. Andressa talks to Mark Grayson about bringing Oliver Grayson to Earth with him as Oliver will eventually outlive his mother Andressa. Mark Grayson reluctantly takes Oliver Grayson to Earth with him and leaves Thraxa to take care of Oliver Grayson. Mark Grayson goes back to his home and tells his mother Debbie Grayson about his experience on Thraxa. Debbie initially prepares to get herself a drink of alcohol, but is shocked with Oliver Grayson's arrival.
Debbie questions Mark Grayson on who Oliver Grayson is, so Mark Grayson tells Debbie about how Andressa and Omni-Man gave birth to Oliver Grayson. Mark Grayson tells his mother to watch over Oliver Grayson as Mark Grayson needs to go to meet Cecil Stedman. At the same time, Debbie enjoys carrying Oliver Grayson in her arms.
==Issue #31==
Mark Grayson sees that Debbie and Oliver are enjoying their time together, so both Mark Grayson and Debbie sit down on the couch to talk about Oliver Grayson. Debbie questions Mark Grayson if Oliver Grayson has a name, but Mark Grayson answers that Oliver Grayson does not have a name. Mark Grayson explains that the tradition of Thraxa is that the babies are the ones that decide on how they name themselves. After defeating a villain in the city, Mark Grayson returns back home to feed his brother Oliver Grayson some food.
==Issue #32==
Mark Grayson goes back home in a hurry, only to find out that Angstrom Levy is holding Debbie and Oliver Grayson hostage.
==Issue #33==
Angstrom Levy takes Invincible to another dimension while at the same time, Angstrom Levy comments on how cute Oliver Grayson is. Angstrom Levy plans to use Debbie and Oliver Grayson to get his revenge against Invincible which only serves to make Invincible charge at Angstrom Levy. Angstrom Levy takes advantage of Invincible by throwing him into one of his portals again. At the same time, Debbie attempts to calm Oliver about the situation, but Angstrom Levy scolds Debbie for lying to Oliver about the situation they are in. Angstrom Levy opens up the portal and Invincible immediately flies out of it.
Angstrom Levy threatens to throw Debbie and Oliver to a dangerous dimension, so Invincible begs Angstrom Levy to spare them. Angstrom Levy refuses as Angstrom Levy wants to make his revenge satisfying towards Invincible. Angstrom Levy throws Invincible to another dimension, so Debbie hits Angstrom Levy with a lamp. However, Angstrom Levy retaliates by snapping Debbie's arm. Angstrom Levy opens up a portal for Invincible, but Invincible is not coming in, so Angstrom Levy peeks through his portal to find Invincible.
Suddenly Invincible charges at Angstrom Levy and fights him. After finding out what Angstrom Levy has done to Debbie, Invincible rams Angstrom Levy right through the house.
==Issue #34==
In the aftermath of Invincible and Angstrom Levy's battle, Mark Grayson meets up with his family and is glad to find out that they are ok.
== Issue #35 ==
Oliver Grayson and Debbie play inside their house until Oliver's new tutor named April Howsam arrives. April Howsam plans on tutoring Oliver Grayson due to Oliver Grayson's fast learning capabilities. April Howsam asks Debbie on Oliver Grayson's name and Debbie officially names her baby as "Oliver."
== Issue #38 ==
Oliver Grayson is shown to have grown up quite a bit and is no longer a baby. Oliver Grayson is with April Howsam and is struggling on his work, so April Howsam does what she can to encourage Oliver Grayson to work hard. Debbie asks April Howsam on how Oliver is doing and April Howsam answers that Oliver Grayson is able to learn rapidly to the point Oliver Grayson's intelligence is similar to a 4th grader. Oliver tells Debbie that he loves her which makes Debbie smile at Oliver Grayson's compliment.
== Issue #42 ==
After Invincible is done beating up some supervillains, he goes back to his house to meet Debbie and Oliver Grayson again. Mark Grayson asks his mother how Oliver and Debbie answer on how much Oliver has grown since Mark Grayson's last visit. Mark Grayson looks for Oliver Grayson and finds his brother in the backyard. Mark Grayson asks Oliver Grayson on how he is feeling and Oliver Grayson replies that he is ok. Oliver Grayson asks Mark when Oliver himself will get powers.
Mark Grayson admits that Oliver Grayson will get powers later in his life, so Mark Grayson asks Oliver Grayson if Oliver Grayson wants to play catch. Oliver does not know how to play the game, so Mark Grayson explains Oliver the rules. Mark Grayson throws the ball into Oliver, but Mark Grayson worries that he may have thrown it too high for Oliver Grayson to reach. Luckily, Oliver is able to fly and catch the ball. Mark Grayson is impressed with Oliver Grayson's ability to fly and Oliver Grayson tells Mark Grayson that his flight is supposed to be a surprise to Debbie.
== Issue #43 ==
Debbie prepares to give Mark Grayson and Oliver Grayson some food and is surprised to find out that Oliver Grayson is able to fly. Mark Grayson suggests that Oliver Grayson can be his sidekick, so Debbie takes both Mark Grayson and Oliver Grayson in the house to talk. Debbie admits to Mark Grayson and Oliver that for Oliver to gain powers at such a young age would be dangerous for everyone due to how Oliver Grayson may not control his powers. Mark Grayson thinks that it will be fine, but Debbie replies that Mark Grayson was older when he got his powers meaning Mark Grayson is more experienced with his powers. Mark Grayson explains that he can solve the problem by helping Oliver Grayson control the latter's own superpowers, but Debbie replies that Mark Grayson still needs to go to school.
However, Mark Grayson can quit school for Oliver Grayson, but Debbie scolds Mark Grayson. Mark Grayson feels as though that school is a waste of time for him because he already has superpowers, but Debbie still wants Mark Grayson to go to school. Mark Grayson wants Debbie to give him a reason because Mark Grayson feels demotivated to go back to school.
== Issue #44 ==
Oliver Grayson gives the keys that Debbie was looking for, so Debbie thanks Oliver Grayson for his help. Debbie leaves Oliver Grayson and trusts April Howsam to take care of Oliver. Debbie leaves her house and she says her goodbye to Oliver.
== Issue #45 ==
Debbie and Mark Grayson return to their home and ask Oliver Grayson how he is doing. Oliver Grayson admits that he is happy to be working with April Howsam and April Howsam takes the time to introduce herself to Mark Grayson. Mark Grayson is glad to have met April Howsam, so he asks April Howsam on Oliver Grayson's progress in learning. April Howsam explains that Oliver Grayson is able to cover six years worth of grade school and Oliver Grayson is proud of his achievements.
== Issue #47 ==
Mark Grayson gives his superhero costume to Debbie, so that it could be washed and cleaned. Mark Grayson then goes to Oliver and questions Oliver Grayson on where April Howsam is. Oliver Grayson replies that April Howsam is taking a break from her job. Oliver asks Mark Grayson about the story of their father because Debbie Grayson does not like to talk about Nolan Grayson. Mark Grayson listens to Oliver Grayson, so Oliver Grayson explains that he is able to remember everything about his life ever since he was born.
Oliver Grayson thinks of Nolan Grayson as his loving father and does not fear Nolan Grayson in any way, but the newspapers that Oliver Grayson had read on Earth portrays Nolan Grayson as a powerful conqueror. Oliver Grayson believes that Nolan Grayson is putting on a façade of a personality, so Oliver Grayson asks Mark Grayson on what kind of a man their father is. Mark Grayson is unable to answer Oliver Grayson until Mark Grayson is called to defeat Tether Tyrant and Magmaniac. Invincible goes on to fight Magmaniac and Tether Tyrant while Oliver Grayson watches on top of a building. Invincible punches Magmaniac and Magmaniac crashes into the building Oliver was watching on.
Magmaniac realizes that Oliver Grayson is working with Invincible, so Oliver Grayson punches Magmaniac into a vehicle. Invincible questions why Oliver is at the battle scene, so Oliver Grayson replies that he wants to help Invincible. Oliver Grayson flies Tether Tyrant into a building, so that Tether Tyrant can let go of Invincible, but Tether Tyrant refuses to let go. Magmaniac wakes up from the fall and questions if he and Tether Tyrant had won, but Invincible punches Tether Tyrant in the face. Oliver Grayson questions if had helped Invincible and asks Invincible if Oliver Grayson can be his partner.
Invincible and Oliver fly away from the scene and Invincible explains that they can talk later.
== Issue #50 ==
Oliver Grayson, Debbie, and Atom Eve worry about what happened during Mark Grayson's fight against Cecil Stedman. Oliver Grayson tells Mark Grayson that Oliver Grayson was trying to comfort Atom Eve. Mark Grayson and Atom Eve later talk outside of the house and Oliver Grayson is disgusted with the fact that Mark Grayson is kissing with Atom Eve.
== Issue #51 ==
Oliver Grayson and Mark Grayson fly in the sky, so that Mark Grayson can teach Oliver Grayson on how to fly. Oliver Grayson wants Mark Grayson to slow down on flying, but Mark Grayson explains that he wants Oliver Grayson to fly fast, so that Oliver Grayson can become a better flier in the future. Oliver Grayson asks Mark Grayson where they are going and Mark Grayson answers that they are going to Art Rosenbaum for Oliver Grayson to get a superhero costume. In Aer Rosenbaum's shop, Oliver Grayson is thrilled to be wearing his very own superhero suit. Oliver Grayson declares himself as "Kid Omni-Man", but Mark Grayson believes that Oliver Grayson should change the latter's name due to the controversy of their father Omni-Man.
However, Oliver Grayson still wants to be called as Kid Omni-Man, so that his father Nolan Grayson can be honored on Earth just like in Thraxa, which Mark Grayson agrees on. Art Rosenbaum then gives Mark Grayson a new version of the latter's Invincible suit. Mark Grayson asks Art Rosenbaum on why the latter needs a new suit, so Art Rosenbaum answers that he just felt as though the old Invincible suit's design got boring. Art Rosenbaum gets a phone call from Debbie in which Debbie states that there is an attack happening at the stronghold penitentiary. Invincible and Oliver Grayson then leave Art Rosenbaum to deal with the attackers on the stronghold penitentiary.
Kursk and Furnace attack the guards of the stronghold penitentiary, so that they can free the prisoner that they are looking for. Oliver Grayson and Invincible arrive at the battlefield to defeat Kursk and Furnace. Oliver Grayson attempts to attack Kursk, but Oliver Grayson is hit by Kursk's lightning which sends Oliver Grayson to crash on the ground. Invincible worries about Oliver Grayson's fall, so Invincible tosses Furnace to Kursk to quickly defeat the supervillains. Invincible asks Oliver Grayson if the latter is ok and Oliver Grayson admits that the latter is ok.
Invincible berates Oliver Grayson for being reckless in the battlefield, so Oliver Grayson apologizes to Invincible. In the aftermath of the battle, Invincible and Oliver Grayson fly in the skies to continue Oliver Grayson's training on flying faster. Invincible notes that Oliver Grayson must be able to fly faster due to Oliver Grayson's genetics. Oliver Grayson questions Invincible if Invincible is still mad at him and Invincible answers that he is. Invincible and Oliver Grayson arrive back home and see that Debbie is with Paul.
Debbie feels embarrassed and Invincible is annoyed at how the TV news is calling Invincible as "Invinciboy" while Oliver Grayson is impressed about being on the TV news.
== Issue #52 ==
Oliver Grayson questions Debbie on where Mark Grayson is, so Debbie answers that Mark Grayson is off to fight the Mauler Twins in the nuclear missile silo. Oliver Grayson leaves the house in his superhero suit to fight the Mauler Twins. Invincible is in trouble due to the blast he took from one of the Mauler Twins guns and Oliver Grayson arrives to punch the Mauler that shot Invincible. Invincible warns Oliver Grayson to stay out of the battle, but one of the Mauler attacks Invincible. Oliver Grayson attacks the Mauler that hit Invincible, so the other Mauler with the gun prepares to shoot Oliver Grayson.
Invincible attacks the Mauler with the gun to save Oliver, so the Mauler with the gun launches the nuclear missile into space to destroy the satellites. Invincible goes after the missile and tells Oliver Grayson to stay out of the battle. However, Oliver refuses to listen to Invincible's advice and breaks one of the Mauler Twins' jaws. The Mauler with the broken jaw throws Oliver into the wall in frustration. Oliver gets angry towards the Mauler with the broken jaw and kills the Mauler by going through the Mauler with the broken jaw.
The other Mauler attempts to surrender to Oliver Grayson, but Oliver Grayson kills the surviving Mauler by punching the Mauler's head. Immortal wakes up and is shocked to find out that Oliver Grayson had murdered the Mauler Twins. Oliver Grayson tells the superheroes that it was an accident and Cecil Stedman goes to the scene to comfort Oliver Grayson. Invincible arrives at the scene and attacks Cecil Stedman as Invincible warned Cecil Stedman to not approach Invincible's family. Cecil Stedman tells Invincible that Cecil Stedman only wanted to help Oliver Grayson after what Oliver Grayson had done to the Mauler Twins.
Invincible looks at the bodies of the Mauler Twins and orders Oliver Grayson to fly up in the skies. Oliver Grayson and Marks Grayson argue to each other about the death of the Mauler Twins. Oliver Grayson justifies himself by saying that the Mauler Twins were criminals, but Mark Grayson tells Oliver Grayson that it is still not an excuse to kill people. Mark Grayson explains that human life is valuable, but Oliver Grayson finds life to be meaningless due to how people constantly risk themselves to save others. Oliver Grayson tells Mark Grayson if Mark Grayson has ever understood about why their father Nolan Grayson wanted to conquer the Earth.
Mark Grayson agrees and admits to Oliver Grayson that Mark Grayson sometimes believes that their father Nolan Grayson was right in conquering the Earth for the Viltrumite Empire.
== Issue #53 ==
Oliver Grayson reads a book in the office of the Grayson home and Mark Grayson goes through the window to see Oliver Grayson. Mark Grayson asks Oliver Grayson if they should continue their conversation from yesterday, but Oliver feels as though that there is nothing to talk about. Oliver Grayson admits that he struggles to connect with Earth as he finds Earth's people to be disgusting and self-centered. Mark Grayson is unable to believe Oliver, as Oliver Grayson had lived longer on Earth than on Thraxa, but Oliver Grayson explains that the latter can remember everything on Thraxa. Mark Grayson is unable to believe Oliver Grayson, so Mark Grayson decides to continue their conversation later.
Mark Grayson leaves Oliver Grayson in the office and Oliver Grayson is bitter towards Mark Grayson. Later, Invincible returns back to his house after his time with Atom Eve to find Oliver Grayson. Mark Grayson peeks at the office to find Oliver and is surprised to find that Oliver Grayson is dressed back up into his superhero suit. Oliver Grayson and Invincible then apologize to each other and hug each other for comfort. However, Oliver Grayson is irritated with Invincible's hug.
== Issue #56 ==
Oliver Grayson knocks on a door to give Mark Grayson a phone call. Oliver Grayson barges into the room and is surprised to see Atom Eve. Mark Grayson tells Oliver to keep what Oliver just saw a secret. Mark Grayson answers the phone and says that he will be there in a minute. Mark Grayson puts on his Invincible costume and Oliver Grayson asks if he can come along with Mark Grayson.
Mark Grayson explains that the situation is personal, so Oliver Grayson should stay out of it. Oliver Grayson had expected that he and Mark Grayson were going to train today, but Mark Grayson explains that Oliver Grayson will have to stay home and Mark Grayson will train Oliver Grayson at night. However, Oliver Grayson refuses to listen to Mark Grayson, so Oliver Grayson grabs his superhero costume and prepares to go on a solo adventure as a hero. Oliver Grayson patrols around Earth, but is unable to find a supervillain. While Oliver Grayson patrols the world, Oliver Grayson is secretly being watched by Angstrom Levy's camera.
Oliver Grayson eventually spots a supervillain named Rampage who is destroying the street, which makes Oliver Grayson excited to fight Rampage. Rampage begs Oliver Grayson to destroy his armor because Rampage is trapped in the armor. Oliver Grayson attempts to help Rampage, but Rampage thinks that Oliver Grayson is too weak to help him. Oliver Grayson is angered at the fact that Rampage is attacking him even though Oliver Grayson did what Rampage had ordered. In the Grayson house hold, Invincible asks Debbie where Oliver Grayson is, so Debbie answers that Oliver Grayson is fighting a supervillain.
Invincible goes to Oliver Grayson's fight with Rampage and Invincible easily defeats Rampage by crashing onto Rampage. Oliver Grayson explains that he can handle Rampage, but Invincible is angry at Oliver for the destruction that was caused by Rampage. Mark Grayson goes to visit Oliver Grayson at their house in the night and Mark Grayson asks if Oliver Grayson is awake. Oliver Grayson answers that he is to Mark Grayson, so Oliver Grayson leaves the windows to talk to Mark Grayson. Mark Grayson attempts to apologize to Oliver for being harsh towards him, but Oliver Grayson spots something in the trees.
Mark Grayson finds the ball and attempts to grab it, but it explodes. Oliver Grayson questions what it is, so Mark Grayson answers that someone is watching them.
== Issue #57 ==
Invincible and Oliver Grayson give the camera orb to Rudolph Conners, so that the camera orb could be examined. Oliver Grayson plays games with Rudolph Conners and Monster Girl while Invincible goes to find answers from Cecil Stedman.
== Issue #58 ==
Invincible and Oliver Grayson fly in the sky for training and Invincible is impressed with Oliver's speed in flying. Invincible and Oliver Grayson eventually fly down to a restaurant to eat as both of them are hungry. Invincible and Oliver Grayson race with each other to their house and Invincible wins their race. Unfortunately, Oliver Grayson is unable to stop in time which causes Oliver Grayson to crash and damage the house. At night in the Grayson household, Oliver Grayson thanks April Howsam for continuing to teach him despite the relationship between Mark Grayson and Cecil Stedman.
April Howsam asks Oliver Grayson where Debbie is and Oliver Grayson replies that Debbie is with her boyfriend in a different place because the Grayson household is too dangerous. April Howsam questions why the Grayson house is dangerous and Oliver answers that it is because of the secret cameras some random supervillain had planted. April Howsam asks Oliver if they are safe and Oliver Grayson believes that the supervillains are mostly focused on Mark Grayson.
== Invincible War | Issue #60 ==
Oliver Grayson and the other superheroes work together to fight the Evil Alternate Mark Graysons from destroying the Earth during the days of the Invincible War. On the third day of the Invincible War, Invincible, Zandale Randolph, and Oliver confront and fight Angstrom Levy. Invincible is able to grab Angstrom Levy by the throat, so Invincible berates Angstrom Levy for the lives that were lost in the Invincible War. Surprisingly, Oliver Grayson cuts off Invincible's scolding towards Angstrom levy, as Oliver Grayson believes that everything would have been prevented if Invincible had killed Angstrom Levy during their first meeting. Invincible listens to Oliver Grayson's advice and prepares to kill Angstrom Levy to prevent Angstrom Levy from killing more people.
Unfortunately, Angstrom Levy is able to use his explosives to blow Invincible away and escape through a portal. However, Invincible was able to rip off one of Angstrom Levy's arms before Angstrom Levy escapes in the portal. Invincible holds on to the arm of Angstrom Levy which disgusts Oliver Grayson.
== Tech Jacket Digital Volume 1 | Issue #1 ==
Oliver Grayson briefly appears in a monitor of Tech Jacket.
== Invincible War: Aftermath | Conquest Part 1 | Issue #61 ==
Oliver Grayson alongside the other superheroes repairs the damage that the Alternate Evil Mark Graysons had done on Earth. Oliver later comforts Invincible after Powerplex's short attack on Invincible.
== Invincible War: Aftermath | Conquest Part 2 | Issue #62 ==
Oliver Grayson, Debbie, and Paul all watch the news on the fight between Invincible and Conquest. Oliver Grayson rushes out of the house to help Invincible fight Conquest. Debbie worries for Oliver Grayson's safety and Paul comforts Debbie with the fact that both Oliver Grayson and Mark Grayson are strong enough to fight Conquest. Oliver attempts to catch Conquest, but is unable to as Conquest is flying too fast for Oliver Grayson to reach and at the same time, Conquest is punching Invincible while flying. Conquest punches Invincible to the ground and Invincible attempts to beg for mercy from Conquest.
However, Conquest forces Invincible to fight harder, but is stopped with Oliver Grayson. Conquest questions who Oliver Grayson is, but Oliver Grayson insults Conquest. Invincible kicks Conquest and throws Oliver Grayson away from the fight as Invincible believes the fight is too dangerous for Oliver Grayson to handle. Conquest attacks Invincible and berates Invincible for declining help.
== Invincible War: Aftermath | Conquest Part 3 | Issue #63 ==
Conquest continues to beat up Invincible and Oliver arrives again to sneak attack Conquest to save Invincible. Oliver Grayson helps Invincible to get back up, as Oliver believes that if he and Invincible team up, then they can beat Conquest. Conquest walks towards both Oliver and Invincible and Conquest believes Oliver Grayson to be bluffing. Conquest proclaims that he will eat Oliver's heart, so Conquest throws Invincible away, so that Conquest can deal with Oliver Grayson personally. Conquest breaks Oliver's jaw and prepares to rip Oliver Grayson in half while Conquest excitedly proclaims on how amazing it will be to see Oliver Grayson be split in half.
Before Conquest can rip Oliver in half, Invincible flies towards Conquest and is able to successfully save Oliver Grayson from Conquest. Conquest finds Invincible to be faster than he anticipated, so Conquest promises to eat the heart of Invincible. Cecil Stedman arrives in the battle scene to get help to Oliver Grayson and to send Atom Eve to fight Conquest.
== Invincible War: Aftermath | Conquest Epilogue | Issue #65 ==
Mark Grayson talks to Oliver Grayson in the hospital and apologizes to Oliver Grayson for their past relationships. Mark Grayson explains that there is something wrong with Atom Eve's powers and Oliver Grayson asks what that means. Mark Grayson is unable to explain an answer to Oliver Grayson, so Oliver Grayson asks Mark Grayson if Atom Eve is ok. Mark Grayson admits that Atom Eve is ok, but Mark Grayson is still upset with the battle against Conquest. Mark Grayson apologizes to Oliver Grayson, as Oliver Grayson was right about why some villains need to die.
Mark Grayson promises to Oliver Grayson that he will be prepared to kill any villain that plans to threaten his family.
== Issue #68 ==
An aged up Oliver Grayson flies towards Invincible and Atom Eve in the skies. Invincible asks Oliver Grayson on why Oliver Grayson has a new costume and Oliver answers that Art Rosembaum gave him a new costume because Oliver Grayson is getting too big for the previous original one. Oliver Grayson in his new costume declares himself as "Young Omni-Man" and goes to patrol Earth.
== Issue #70 ==
Oliver Grayson studies with April Howsam and April Howsam notes to Oliver Grayson that Oliver Grayson's aging is slowing down considerably. Mark Grayson goes up stairs to his room which makes April Howsam question if Oliver and Mark Grayson are still fighting. Oliver answers to April Howsam that Mark Grayson is dealing with some personal problems.
== Issue #70.5 ==
In the Global Defense Agency, Oliver Grayson is mentioned during Invincible and Cecil Stedman's conversation. In the Grayson household, Debbie and Oliver talk to each other.
== The Viltrumite War | Issue #71 ==
In the shopping mall, Oliver Grayson succeeds in defeating the leader of the Lizard League. Back at the Grayson household, Oliver Grayson argues with Mark Grayson to go into the Viltrumite War with their father Nolan Grayson. Mark Grayson wants Oliver Grayson to stay on Earth to protect their mother Debbie, but Oliver Grayson wants to come into the Viltrumite War to get revenge for what the Viltrumites had done to Andressa and to have the chance to be with his father Nolan Grayson. Debbie asks who Mark Grayson and Oliver are talking about, until Nolan Grayson walks in the house to talk with Debbie. Nolan Grayson later asks his son Mark Grayson to leave to have the chance to be with Oliver Grayson privately.
Nolan expresses joy on how Oliver Grayson has matured and Oliver Grayson feels baffled when talking to his father Nolan Grayson. Nolan Grayson thinks that Oliver Grayson can come join the Viltrumite War, so that they would have more time to talk with each other which makes Oliver Grayson excited. Mark Grayson, Nolan, and Oliver eventually fly into space to get ready for the Viltrumite War and Oliver Grayson asks Nolan Grayson on how long Oliver Grayson can hold his breath. The space ship suddenly explodes and Invincible panics to the crew members to let him out in space to find his father. Invincible, Oliver Grayson, and Tech Jacket all look for Nolan Grayson and Allen, but are instead met by 3 Viltrumites.
Oliver and Invincible are shocked to find out that one of the 3 Viltrumites had Conquest alive.
== The Viltrumite War | Issue #72 ==
Conquest taunts both Invincible and Oliver in their second meeting which provokes Oliver Grayson to fly at Conquest. Invincible is pushed back by Lucan and Conquest slaps Oliver believing Oliver to be a great warm up. Oliver Grayson fights Lucan, but is punched in the face by Lucan. Luckily, Omni-Man was able to step into the battle to help Oliver Grayson. Nolan Grayson chokes Lucan while Oliver Grayson takes the chance to punch Lucan which impresses Omni-Man.
Suddenly another Viltrumite Warship filled with other aliens prepares to support the Viltrumites by shooting the members of the Coalition of Planets. The aliens manage to shoot Oliver Grayson in the back which causes Oliver Grayson to lose his breath. Oliver Grayson struggles to breathe, so Omni-Man directs Oliver Grayson to get air from a nearby planet. Conquest notices Oliver Grayson flying towards the planet, so Conquest goes to Oliver Grayson for an easy kill. Invincible follows Conquest to protect Oliver.
Oliver manages to breath in the planet and Invincible chokes Conquest during their fight as they crash onto the planet. Oliver looks up into the sky and sees Invincible choking Conquest. Oliver and Omni-Man fly to find Invincible and see him with his guts being squeezed by Conquest's corpse.
== The Viltrumite War | Issue #73 ==
Nolan Grayson creates a grave for Conquest and Oliver scolds Nolan Grayson for sympathizing with Conquest. Nolan Grayson explains that Conquest was a great Viltrumite soldier for the Viltrumite Empire, but Oliver Grayson only sees Conquest as a monster. Nolan Grayson tells Oliver Grayson to go back to Mark Grayson to make sure that Mark Grayson is ok. Oliver Grayson questions his father Nolan Grayson on how long Mark Grayson is going to heal, so Nolan Grayson estimates that it will probably take months. Nolan Grayson believes that Mark Grayson healing for months is a great thing, but Oliver questions why.
Nolan Grayson explains that he wants to use that time to spend time with Oliver while Mark Grayson heals up. Nolan Grayson fights the monstrous aliens on the planet and Oliver Grayson is disgusted that they have to eat the aliens to survive. Oliver and Nolan eventually eat the aliens and Oliver eventually finds the aliens to be tasty. Eventually, Oliver uses the alien meat to feed Mark Grayson in his coma from Conquest. Oliver Grayson asks Nolan if Nolan loved Debbie and Nolan Grayson answers that he realized his love for Debbie during his time in the Viltrumite prison.
Nolan Grayson explains his life on Earth to Oliver Grayson and on how Earth had changed Omni-Man to love his family. Oliver Grayson feels saddened that his father Nolan had ruined his own life on Earth by working for Viltrumite Empire and had attempted to kill his son Mark Grayson. Oliver and Nolan later fly in the sky to talk about their life on Thraxa. Oliver admits that he feels saddened that his mother Andressa is dead due to age, but Nolan admits that Andressa was a great person and that the fast aging of the Thraxans is unfortunate. Oliver questions his father Nolan if he will outlive his father.
Nolan admits that Oliver can live for centuries due to Oliver Grayson's Viltrumite DNA. Oliver Grayson admits that he wants to get revenge against the Viltrumites and Nolan also wants to fight the Viltrumites as soon as Mark Grayson has been healed. Nolan considers going back to check on Mark Grayson and Oliver Grayson is able to fortunately find a nest of the aliens that they eat. Oliver and Nolan continue to spend their time together by training, watching Mark Grayson heal, and talking with each other.
== The Viltrumite War | Issue #74 ==
Oliver and Nolan talk about the girls that Nolan had met and would like to introduce them to Oliver Grayson, but are surprised to find out that Mark Grayson is awake from his coma. Mark Grayson asks the two of them what happened to Conquest and both Oliver Grayson and Nolan Grayson congratulate Mark Grayson for killing Conquest. Mark Grayson admits that he was so scared in fighting Conquest that he could believe that he had killed him. Nolan theorizes that Mark Grayson was invested during his fight against Conquest and was focused on wanting to kill Conquest, while Conquest acted as a spectator in the fight. Mark Grayson feels uncomfortable in killing Conquest, so Nolan Grayson gives Mark Grayson the motivation to rejoin the Viltrumite War.
With the Coalition of Planets losing against the Viltrumites, Thaedus believes that the Viltrumites have won until Nolan, Mark Grayson, and Oliver arrive to help the Coalition of Planets. Nolan saves Thaedus and Tech Jacket by punching Anissa in the face while Oliver and Mark Grayson free the aliens that the Viltrumite Empire have enslaved to fight. Thaedus requests Mark Grayson and Oliver to go on the outer parts of the city they are on to defend from the Viltrumites. Mark Grayson admits that he can do that, but he needs Oliver's help to do something first. Mark Grayson asks Oliver to fly and Oliver explains that he can already fly, but Oliver figures out that Mark Grayson and him are going to fly towards the Viltrumite Warships to destroy them.
After blowing up the Viltrumite Warship, Oliver and Mark Grayson lift up the Viltrumite Warship, so that they can throw it into space. The Viltrumites leave the Coalition of Planets as they cannot risk continuing attacking the Coalition of Planets. With the Viltrumites gone, Thaedus and another alien deal with the traitor among the Coalition of Planets.
== The Viltrumite War | Issue #75 ==
Thaedus plans to counter-attack planet Viltrum and asks everyone if they are ready to attack. Tech Jacket, Invincible, Allen, Omni-Man, Battle Beast, Space Racer and Oliver admit that they are ready to attack Viltrum. Oliver Grayson goes to Omni-Man to ask him where Space Racer is. Omni-Man explains that Space Racer is going to pick up something and Invincible asks his father what it is. Omni-Man explains that it would take too long to explain everything.
Thaedus then arrives to asks Invincible, Omni-Man, and Oliver to go back to the main hanger. In space, Tech Jacket, Invincible, Allen, Omni-Man, Battle Beast, fly towards Viltrum, but Thaedus is stabbed in the back by Thula. Invincible sees the empire Viltrumite species approaching towards them and Thaedus asks his team to get ready to fight. Space Racer arrives in the battle to throw Rognarrs towards the Viltrumites and the Rognarrs eat the Viltrumites. Oliver Grayson fights a Viltrumite and insults the Viltrumite's genitals.
Invincible fights Grand Regent Thragg, but is quickly slapped away from him, so Oliver attempts to fight Thagg. Unfortunately, Thragg grabs Oliver's arm and punches Oliver Grayson in the jaw which results in Oliver Grayson's arm being ripped off. Omni-Man and Allen see what Thragg had done to Oliver and are shocked at what happened. Invincible charges at Thragg in anger for what Thragg has done to Oliver. Invincible continues to punch Thragg, but Thragg catches Invincible's fist and tells Invincible that Thragg is stronger than Conquest.
Invincible retaliates to Thragg by telling Thragg that Invincible has already killed Conquest himself. This causes the other Viltrumites to pause at Invincible's statement, so Thaedus asks his team to follow him to blow up Viltrum. Space Racer shoots Viltrum and Invincible, Tech Jacket, Omni-Man, and Thaedus charge at Viltrum at full speed. Allen and Tech Jacket are pulled away by the Viltrumites, but Thaedus, Invincible, and Omni-Man are still able to succeed in blowing up Viltrum. In the aftermath of Viltrum's destruction, Invincible goes to Oliver Grayson's injured body and hugs him.
At the same time, Thragg succeeds in killing Thaedus. After killing Thaedus, Thragg asks his enemies to grieve while they still can as Thragg plans to kill them all.
== The Viltrumite War | Issue #76 ==
Mark Grayson attacks Thragg in frustration, but Thragg easily beats Invincible and attempts to crush Invincible's head with his bare hands. Nolan arrives to save Mark Grayson by fighting Thragg and Thragg is angered to find out that Nolan had sided with Thaedus. Thragg attempts to continue his fight against Nolan, but is distracted by Battle Beast. Allen is getting beaten by the Viltrumites, but is luckily saved by Space Racer. Space Racer picks up Tech Jacket and flees the battle with Allen as Space Racer is unable to help Mark Grayson and Nolan Grayson escape Thragg.
Nolan and Mark Grayson say their goodbyes to each other before Thragg knocks them both out by injuring them. Mark Grayson eventually wakes up in a spaceship from the Coalition of Planets and asks Allen where Oliver Grayson is. Allen shows Mark Grayson on how Oliver Grayson is recovering which surprises Mark Grayson. Nolan explains to Mark Grayson on how Oliver Grayson's Viltrumite brain had helped him survive the low oxygen supply in space. Mark Grayson questions what is happening on Oliver Grayson's arm and Nolan answers that skin tissues will be grown over on Oliver Grayson's new prosthetic arm.
Upon finding out Oliver Grayson is alive, Mark Grayson is relieved of his worries on his brother.
== Issue #85 ==
Oliver Grayson is able to get a full recovery from his injuries from the Viltrumite War and leaves Allen and Telia to test his new arm. Oliver Grayson finds an alien criminal that stole something in his bag, so Oliver attempts to stop the criminal, but is slapped away by the criminal. The police arrive and taser the criminal and Oliver is surprised at how easily the criminal is defeated. Nolan arrives on top of Oliver and they are both glad to be reunited. Oliver eventually reunites with Debbie and Nolan goes to talk with Allen.
Oliver, Debbie, and Nolan move into another house in Talescria which makes Oliver wish that he had stayed in the new house rather than with Allen and Telia. Oliver sleeps in the new house, but is disturbed by the noises that Nolan and Debbie are making at night which makes Oliver struggle to sleep. After waking up, Oliver and Nolan fly in the sky of Talescria and Oliver admits that he prefers to live on Talescria rather than on Earth, as the people in Talescria are more aware of the universe and happier. Nolan and Oliver go to Allen, but Allen wants Oliver to leave which Oliver complies.
== Issue #86 ==
Oliver hits Allen in the back in frustration as to why Allen is attacking Nolan. Allen attempts to reason with Oliver, but Oliver continues to punch Allen and eventually kicks Allen in the genitals. Allen holds onto his genitals in pain and when Oliver continues to attack Allen, both Oliver and Nolan are surrounded by the Talescria military soldiers. Allen explains that the Scourge Virus can eliminate the Viltrumites on Earth and Nolan notes that it can potentially eliminate the humans too. Oliver agrees with Allen as Oliver wishes the Viltrumites to be eliminated from the Earth.
Nolan explains that the humans can potentially reform the Viltrumites, But Oliver thinks that the humans are too selfish to change the Viltrumites. Allen orders his soldiers to restrain Nolan, but Nolan breaks free from the soldiers and attempts to attack Oliver. Nolan is unable to attack Oliver due to his experience when beating down on Mark Grayson. Allen takes the chance to knock out Nolan while he is distracted. With Nolan knocked out, Allen asks Oliver to accompany him to Earth to convince Mark Grayson to let them use the Scourge Virus on Earth or to restrain Mark Grayson from opposing them.
== Issue #87 ==
Invincible talks with Cecil and Cecil tells Invincible that Allen is coming to Earth. Invincible flies up into space and is glad to be reunited with both Oliver and Allen. Invincible is glad to see Oliver completely healed from his injuries, but Allen needs to talk about the Scourge Virus with Invincible. Invincible realizes that Allen and Oliver plan to release the Scourge Virus into Earth which could potentially exterminate the human race and Invincible believes both Allen and Oliver to be crazy. Allen and Oliver continue to convince Invincible, but Invincible still refuses Allen and Oliver to release the Scourge Virus into Earth.
Invincible questions Allen on how releasing the Scourge Virus onto Earth would be different than what the Viltrumites had done to the Unopans. Allen answers to Invincible that even though the Human race may potentially become extinct from the Scourge Virus, the sacrifice will be worth it for exterminating the Viltrumite species to save the universe. Invincible realizes why Nolan did not come with Oliver and Allen, as Nolan wanted to protect Earth from Allen and Oliver unleashing the Scourge Virus. Allen believes that Nolan could not see the big picture in having the Scourge Virus be released, but Invincible believes that Nolan was right in attempting to stop Oliver and Allen from releasing the Scourge Virus on Earth. Oliver and Allen both get into a fight against Invincible and Allen questions Invincible as to how he is going to stop the both of them.
Suddenly, Thragg appears behind Invincible to protect Earth from the Scourge Virus that Allen and Oliver had brought.
== Issue #88 ==
Thragg and Allen become distrustful towards each other, so Allen threatens Thragg with the Scourge Virus to stop Thragg from attacking. By pointing the Scourge Virus at Thragg, it only serves to anger Thragg in wanting to kill Allen. Allen threatens Thragg by saying that the Scourge Virus is stronger than the previous one Thaedus used to wipe out the Viltrumite species. However, Thragg believes that he can still kill both Allen and Oliver even if he is poisoned by the Scourge Virus. Invincible tells Allen that releasing the Scourge Virus on Earth will be a bad idea, as Thragg is already aware of the Scourge Virus Allen and Oliver are carrying.
Thragg then decides to propose a truce to Allen and Oliver and the truce that Thragg is proposing about makes Allen suspicious of Thragg. Thragg explains that if Allen releases the Scourge Virus, then there would be a pointless war between the Viltrumites and the Coalition of Planets. Thragg promises that if Allen does not release the Scourge Virus, then the Viltrumites will live in secrecy on Earth. Oliver wishes to have the Scourge Virus released into Earth, but Allen stops him, as Allen believes that Thragg's proposal is their best option to take. Suddenly, the superheroes on Earth arrive in space to arrest Invincible for freeing Dinosaurus. Invincible refuses to get arrested, so the superheroes get into a fight with Invincible.
Monster Girl attempts to fight Thragg, but gets thrown into Japandroid. With Thragg distracted by the superheroes, Oliver takes Allen's Scourge Virus and prepares to release it onto Earth. Invincible notices Oliver leaving and goes to stop Oliver. Invincible and Oliver get into a fight with each other with the Scourge Virus and Oliver accidentally shoots Invincible with the Scourge Virus. Oliver attempts to help Invincible, but Allen tells Oliver to stay away from Invincible to not catch the Scourge Virus.
Invincible yells at Allen to question Allen if the Scourge Virus will harm the Earth. Allen answers that the Scourge Virus will not harm anyone as the Scourge Virus was released in a place with not populated humans or Viltrumites. Invincible calms down, but Allen notices that Invincible is bleeding from his eyes due to the Scourge Virus.
== Issue #89 ==
Oliver stays in the Viltrumite Warship that is on the moon to wait and see if Mark Grayson will get better from the Scourge Virus Oliver Grayson just shot at him.
== Issue #90 ==
Allen questions Oliver on where they are going and Oliver questions if they are going to Talescria, as Oliver Grayson had no connections to anyone on Earth. Allen does not want to leave Earth as he wants to make sure that Mark Grayson is okay and Allen admits that he does not want to return to the Coalition of Planets after their failure to unleash the Scourge Virus on Earth. Allen admits that releasing the Scourge Virus on Earth was a bad idea, as Thragg was right and they would have accomplished nothing in the end. Oliver Grayson believes that their plan would have worked if they had released the Scourge Virus and Allen questions Oliver as to why Oliver is completely fine in releasing the Scourge Virus on Earth despite the fact Oliver spent more time on Earth compared to him. Oliver admits to Allen that by being made with part Thraxan DNA, has made him unable to connect to anyone properly on Earth as Oliver is unable to find life to be special.
Allen finds Oliver's answer to be unsettlingly interesting, so Allen asks Oliver if they should visit Tech Jacket. Oliver agrees, so both Allen and Oliver go to Tech Jacket.
== Issue #91 ==
Oliver Grayson and Allen planned to visit Tech Jacket, but are instead fighting an alien alongside with Tech Jacket. Oliver Grayson questions if the alien is wearing a suit, but Tech Jacket admits that he has never fought the alien. Allen thinks that the alien is attempting to communicating, but it turns out, the alien is melting Tech Jacket's armor. Allen punches the alien as much as he can which cause the alien to shriek in pain. Atom Eve arrives to trap the alien with her bubble and Tech Jacket is saved from the alien.
Atom Eve requests Oliver Grayson, Allen, and Tech Jackets help to find Mark Grayson, so they all follow Atom Eve. In Dinosaurus's base, Oliver Grayson, Allen, and Zandale Randolph attack Dinosaurus while Mark Grayson reunites with Atom Eve. Due to the misunderstanding, Mark Grayson manages to stop the fight between Dinosaurus and the superheroes, but Mark Grayson gets his arm broken in the process.
== Issue #96 ==
Mark Grayson angrily questions Allen and Oliver as to why they are not in London to stop the attack of the Flaxans. Allen and Oliver answer to Mark Grayson that they were with Tech Jacket in space. Both Allen and Oliver hope that nothing bad has happened in London. Mark Grayson eventually apologizes for yelling at both Allen and Oliver. Allen is sorry towards Mark Grayson's broken arm during their misunderstanding with Dinosaurus and Mark Grayson admits that he does not know how long his arm will be healed from his injury of punching Allen to defend Dinosaurus.
Allen says his goodbye to Mark Grayson, as Allen needs to return back to Talescria to deal with great matters. Mark Grayson says his goodbye to Allen, but Oliver asks Allen to leave both Mark Grayson and him alone, as Oliver wants to talk with Mark Grayson privately. Oliver apologizes to Mark Grayson for infecting him with the Scourge Virus. Oliver admits that if losing someone you love is painful, then he was wrong about attempting to release the Scourge Virus into Earth. Mark Grayson forgives Oliver Grayson for his mistake and both Allen and Oliver leave Earth to go to Talescria.
== Issue #97 ==
In Talescria, Nolan Grayson threatens Allen if Allen had killed Mark Grayson on Earth. Allen admits that he was wrong in attempting to release the Scourge Virus onto Earth and is glad to have Mark Grayson stop him from making the biggest mistake of his life. Allen drops all charges from Nolan Grayson and allows Nolan Grayson to be reunited with Debbie. Allen apologizes to Debbie, but Debbie believes it will not make things better after what Allen tried to unleash the Scourge Virus onto Earth. Oliver comes out from behind Allen and asks forgiveness from Debbie. Debbie and Oliver talk to each other while Allen asks Nolan to not hold a grudge on Oliver. Nolan admits that he has no intention of holding a grudge on Oliver, as Oliver is only standing up to his beliefs and is proud of Oliver.
== Issue #118 ==
Mark Grayson, Atom Eve, and Terra arrive at Talescria and are glad to meet with a now older Oliver Grayson. Mark Grayson and Oliver Grayson hug each other and Mark Grayson notes is surprised at Oliver's growth in age. Oliver later introduces his girlfriend Haluma to Atom Eve and Mark Grayson in their house. Mark Grayson, Oliver Grayson, Haluma, and Atom Eve eat at the table with Mark Grayson initially hesitant to try out the alien food. Mark Grayson tries out the alien food and surprisingly enjoys it. All of them except Atom Eve eat the food at the table.
== Issue #119 ==
Oliver Grayson and Haluma go to the hospital to comfort Mark Grayson and Atom Eve in making sure that baby Terra is ok. Mark Grayson accuses Haluma for giving Terra alien food which made her sick and Haluma blames Mark Grayson for bringing Terra to Talescria in the first place which could have made Terra sick. Before Haluma and Mark Grayson's arguments escalate, Oliver Grayson stops the conflict and comforts Mark Grayson.
== Issue #120 ==
Mark Grayson and Oliver Grayson go to planet Thraxa to find Thragg and make sure that Thragg is dead. Oliver Grayson feels as though he is unable to recognize Thraxa and his mother Andressa, so Mark Grayson comforts Oliver Grayson for his loss. Mark Grayson explains to Oliver that they need to find Battle Beast then suddenly, a Thraxan elder approaches them to tell them what happened to Battle Beast. The Thraxan elder explains that Thragg defeated the battle Beast and left Thraxa with multiple women alongside warriors. Oliver and Mark Grayson go back to their spaceship to find out where Thragg went in space.
In the spaceship, one of the pilots detect Thresa and Space Racer who are floating in space. Mark Grayson and Oliver Grayson leave the Spaceship to go pick up Space Racer and Thresa in space. In the medical room, Space Racer and Thresa are able to get help and wake up. Thresa wakes up, but goes on a short rampage before Oliver and Mark Grayson stop her. Once Thresa stops, she cries for comfort from Space Racer to deal with the grief of Battle Beast's death.
== Issue #122 ==
Allen, Mark Grayson, and Oliver Grayson are in a meeting with each other. Allen stares at the window and Oliver Grayson questions Allen if he is listening. Allen is able to sum up everything Oliver Grayson has said and Allen asks Mark Grayson on how the trip to the green lands with Terra and Atom Eve was. Mark Grayson answers that they were forced to battle monsters to survive, so Oliver Grayson scolds Allen. Allen offers Mark Grayson and his family to go to a movie at night as an apology for Allen's mistake. Mark Grayson, Atom Eve, and Terra all go to the movie at night and meet up with both Oliver Grayson and Haluma.
They all go to watch the movie, but Mark Grayson and Atom Eve have to leave due to Terra being irritated about the movie. The next day, Oliver and Mark Grayson fly in the sky while Mark Grayson talks about Terra's sleep at night. Oliver Grayson suggests that Haluma should spend time with Atom Eve to understand each other while both Mark Grayson and Oliver Grayson watch over Terra. Mark Grayson likes Oliver's idea, but their conversation gets distracted when they see an illegal farm. Both Oliver Grayson and Mark Grayson fly down to stop the farm, so the workers in retaliation release a beast called a "Rynax" to fight both Oliver Grayson and Mark Grayson.
In the aftermath of the battle, Mark Grayson and Oliver Grayson were able to kill the Rynax. Oliver and Mark Grayson both go to Allen to report about the illegal farm they had found. Allen finds both Oliver Grayson and Mark Grayson's experience to be horrible, so Allen discusses with both Oliver Grayson and Mark Grayson about Space Racer being able to locate Thragg. Allen hopes that Space Racer is able to remain undetected from Thragg, but unfortunately, Space Racer is spotted by Thragg and is escaping from Thragg.
== Issue #123 ==
Early in the morning, Allen gets his army ready to leave Talescria to fight Thragg and his children. Mark Grayson asks Oliver Grayson if he is ready and Oliver confirms that he is ready. Mark Grayson feels concerned for Oliver as they are both about to fight Thragg and Oliver is annoyed at Mark Grayson's pessimistic views. As they both fly away from Talescria in the spaceships, Oliver Grayson tells Mark Grayson that he does not have to keep worrying for him. Mark Grayson feels as though that he is allowed to worry for Oliver as he is older than Oliver Grayson, but wishes Mark Grayson to not worry about him, as Oliver Grayson is no longer a reckless teenager and has grown up with maturity.
Mark Grayson admits that he just wants Oliver to be safe and does not in any way want to insult Oliver Grayson. Mark Grayson feels uneasy about imagining Thragg using his own children as part of his army and Oliver Grayson jokes to Mark Grayson on how they are screwed which Mark Grayson irritated. Oliver Grayson, Mark Grayson, and the army of the Coalition of Planets arrive at the planet where Thragg was last seen, but are unable to find anything that could clue them to Thragg's location. Both Oliver Grayson and Mark Grayson interrogate the spy that is on the planet, but the spy is unable to give them where Thragg has gone. Oliver Grayson flies around the planet to look for clues that could help find Thragg and Oliver Grayson calls Mark Grayson if Mark Grayson has found any clues.
Mark Grayson tells Oliver Grayson that he is inside of a deep cave, so Oliver immediately tells Mark Grayson to leave the cave, but Oliver's voice is cut off because of the interference. Mark Grayson attempts to fly up to get a connection to Oliver Grayson, but is pulled back down to the cave.
== Issue #127 ==
After five years, Mark Grayson returns back to Talescria and reunites with his family and friends. Mark Grayson goes to Allen and Allen explains that the Coalition of Planets are still at war against Thragg. At night, Mark Grayson and Atom Eve go to a party at night to meet up with Allen and Telia. In the party, Mark Grayson looks at the balcony and Oliver Grayson approaches behind Mark Grayson. Mark Grayson is surprised at Oliver's grown up body and Oliver Grayson asks his brother Mark Grayson on how he is doing.
Mark Grayson cries towards Oliver Grayson due to the stress Mark Grayson had to go through during his time in the past and Oliver Grayson comforts his brother Mark Grayson. After the party at night, Oliver approaches his wife Haluma and Haluma finds the children that Oliver had made with her to be strange to her point of view. Haluma admits to Oliver Grayson that she loves her children and Haluma asks Oliver Grayson if he is going to sleep in bed. However, Oliver Grayson has to make a call first, so Haluma requests Oliver Grayson to be quick with his call. After leaving Haluma, Oliver Grayson opens up his computer to call Thragg.
Oliver Grayson tells Thragg that his brother Mark Grayson is on another planet with Atom Eve and Terra. Oliver Grayson thinks that Mark Grayson will not get in Thragg's way and Thragg finds the information that Oliver Grayson had given him to be excellent. Thragg hopes that the information that Oliver Grayson is telling him is true.
== Issue #129 ==
Oliver Grayson, Mark Grayson, Haluma, Atom Eve, and Terra visit Allen at the hospital to make sure that Allen is ok. Kubian attempts to compliment Atom Eve, but Atom Eve punches him in the face. Terra, who was watching the fight, immediately tells her uncle Oliver Grayson about the fight. A few days later, Oliver goes to talk to Allen about his reports about Thragg. Oliver explains that Thragg is starting to make progress which is making Oliver Grayson worried about the situation.
== Issue #130 ==
In Oliver Grayson's house on Talescria, Oliver Grayson talks to Thragg on the computer. Oliver Grayson requests to meet Thragg in person, but Thragg questions Oliver Grayson if it is even necessary to do so. Oliver Grayson explains to Thragg that he is already risking his life for Thragg and wants Thragg to do the same for him.
== Issue #131 ==
In the morning, Thragg calls Oliver Grayson to make sure that Oliver Grayson will be loyal to him. Oliver Grayson questions Thragg on what more he will need to do, to prove his loyalty to Thragg. Thragg explains to Oliver Grayson that he has succeeded in locating Mark Grayson and will prepare to kill Mark Grayson, Terra, and Atom Eve. Thragg requests Oliver Grayson to do nothing, so that Thragg can succeed in executing Mark Grayson, Terra, and Atom Eve. Oliver Grayson attempts to reason with Thragg on how Oliver Grayson can convince Mark Grayson to join the cause of Thragg, but Thragg explains that his plan to kill Mark Grayson's family is in motion.
Thragg ends the call, leaving Oliver Grayson stressed out from Thragg's test and Haluma comes to see Oliver Grayson as to why Oliver Grayson is yelling.
== Issue #132 ==
Oliver Grayson arrives in Khulthak to save Terra from Thragg. Oliver Grayson tells Terra to go back to Mark Grayson while Oliver Grayson fights Thragg. Thragg holds on to Oliver's throat and they both crash into a cliff. Thragg realizes where Oliver Grayson's loyalty truly lies, so Thragg drags Oliver Grayson's body up the cliff. After dragging Oliver Grayson from the cliff, Thragg tosses Oliver Grayson down to the floor.
Terra attempts to help her uncle Oliver by kicking Thragg in the back, but she gets her leg twisted from the kick. Oliver Grayson attempts to punch Thragg, but Thragg is easily able to grab Oliver's fists. Oliver Grayson taunts Thragg by saying that Thragg is jealous for not being the king of the Viltrumites, but Thragg impales Oliver Grayson with his fist which causes Oliver Grayson to immediately die. Thragg removes his fist from Oliver Grayson's body and Terra cries seeing Oliver Grayson's death. Thragg attempts to talk smoothly with the crying Terra and Thragg wonders where both Mark Grayson and Atom Eve are. Mark Grayson arrives at Thragg while holding Onaan as a hostage for Thragg to let go of Terra.
However, Thragg believes Mark Grayson to hesitate on killing Onaan because Mark Grayson has the reputation of a hero, but Mark Grayson decapitates Onaan while saying that "being a hero is bullshit." Mark Grayson gets into a fight with Thragg and Atom Eve gives Terra a cast for her broken leg. However, Ursaal arrives to break Atom Eve's back and smashes Atom Eve's jaw. At the same time, Thragg rips Mark Grayson's body in half. Ursaal attempts to kill Atom Eve, but Thragg stops Ursaal, so that Thragg can make Mark Grayson and Atom Eve's death be painful while also leaving Terra alone to die.
After Thragg and Ursaal leave, Atom Eve is able to heal herself, Terra, and Mark Grayson while also making Mark Grayson become a little stronger. Terra questions Atom Eve as to why she did not revive Oliver Grayson, but Atom Eve explains that she cannot revive him. Mark Grayson and Atom Eve realize that they cannot take a break if Thragg is alive, so they gain the desire to fight back and kill Thragg.
==Issue #133==
In Talescria, Oliver Grayson's corpse is given a funeral by the aliens. Oliver Grayson's corpse is dragged into a furnace and gets incinerated, so that his corpse will be blasted in the skies to return to the stars. Everyone in the funeral cries and Allen apologizes to Mark Grayson. However, Mark Grayson gets into a fight with Allen to let out his frustrations on Allen. Atom Eve eventually intervenes to stop the fight.
==Issue #144==
Oliver Grayson appears in a flashback during Mark Grayson and Marky's conversation.
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