Question: Who are the characters that will be focused on in the Avengers Initiative four chapters?
About the article "The Avengers (2012 film)", section "Video game".

Candidate passages:
After the conclusion of the "Siege" story arc, which ended the "Dark Reign" storyline, all four of the then-current Avengers series ("The Mighty Avengers", "New Avengers", "Dark Avengers", and "Avengers: The Initiative") were canceled, and a new ongoing series titled "Avengers" was launched in May 2010.
Brian Michael Bendis and John Romita, Jr., serve as regular writer and artist respectively.
The full Avengers roster was revealed in issue #1 as: Thor, Hawkeye, Spider-Man, Wolverine, Captain America, Spider-Woman, Iron Man, and team leader Maria Hill.
The launch marked the beginning of what Marvel calls the "Heroic Age", after seven years of grim story lines, including a superhero Civil War that pitted Iron Man against Captain America and Spider-Man, and the death of Captain America.
According to Marvel Comics editor-in-chief Joe Quesada, "Heroes will be heroes again ...
They've gone through hell and they're back to being good guys—a throwback to the early days of the Marvel Universe, with more of a swashbuckling feel.
"At the start of the "Heroic Age" storyline, the New Avengers became an officially recognized team given independence from Stark's more traditional Avengers by Captain Steve Rogers, primarily due to Cage's distrust of a government backed superhero group.
Captain America left the team to solely serve the main Avengers, Iron Fist rejoined the team, and Power Woman and the Thing were added to the roster.
Steve Rogers had an occasional presence and Victoria Hand was added with his backing, which caused controversy among the other members due to her previous ties to Norman Osborn.
A second series titled "Secret Avengers" was released in May 2010, written by Ed Brubaker with Mike Deodato as the regular artist.
The second volume of the "New Avengers" series was relaunched in June 2010, written by Bendis and drawn by Stuart Immonen.
A fourth title called "Avengers Academy" was launched in June 2010, it replaced "Avengers: The Initiative".
Christos Gage served as writer, with Mike McKone as artist.
During an international meeting between Steve Rogers and MI-13, Captain Britain was offered a job with the Avengers.
Captain Britain accepted despite mixed reactions from his MI-13 teammates.
Noh-Varr was asked to help the Avengers by building a time machine to save the future.
After that crisis was over, Noh-Varr was officially invited to join the Avengers.
Bruce Banner made arrangements with Steve Rogers for the Red Hulk to join the Avengers, and he assists the team in tracking down the Hood as the villain had begun to search for the Infinity Gems to serve as a new 'power source'.
The combined strength of the Avengers, New Avengers, and Secret Avengers was enough to repel the Hood.. After the events of "Fear Itself", the "Shattered Heroes" storyline led to several changes in the main Avengers team lineup, with Quake and Storm being recruited, and the Vision re-joining the team after being rebuilt by Iron Man.
Wolverine and Spider-Man leave the main team, and become more involved in their membership with the New Avengers.
During the events of the "Avengers vs. X-Men" storyline, Storm quits the team to side with her fellow mutants as a member of the X-Men.
After seeing how insane that Cyclops and the other Phoenix-powered X-Men were becoming, she later switches sides to the Avengers but never officially rejoins the main team.
Additionally, Noh-Varr betrays the team and sets out to capture the Phoenix Force due to his loyalty to the Kree Empire.
However, upon learning of the Kree's plan for the Phoenix Force, he comes to his senses.
Despite this, the Avengers felt betrayed and subsequently abandon him.
Following "Avengers vs. X-Men", a new series titled "Uncanny Avengers" debuted in the flagship title of Marvel NOW!.
The title is written by Rick Remender with art by John Cassaday, and the team contains members of both the Avengers and the X-Men.
A new bi-weekly "Avengers" title was launched written by Jonathan Hickman and drawn by different artists for each story arc.
Hickman is also writing "New Avengers", featuring two dozen characters between the two titles.
The first story arc dealt with Captain America leading the Avengers to Mars to counter a powerful being called Ex Nihilo, who intended to destroy and remake life in the universe.
The Avengers then fought against Nightmask and Star Brand during the White Event, the two are imprisoned on Stark's "Sol's Hammer" weapon after Star Brand destroyed the living consciousness of Earth.
In a prelude to the "Infinity" storyline, Ex Nihilo, Abyss, Nightmask, and Star Brand join the Avengers. 
Comics.
"Avengers" comics.
"Nick Fury: Spies Like Us" is a Budapest-set number that plays out like an old-fashioned spy story.
"Avengers Prelude: Fury's Big Week".
As the official prequel, it takes eager fans or soon-to-be-fans through the events of "The Incredible Hulk", "Iron Man 2", "Thor" and "" and weaves in background on the struggle Marvel's security agency S.H.I.E.L.D.
will face in "The Avengers".
"The Avengers Initiative" is a prologue to "The Avengers" movie.
It opens aboard the S.H.I.E.L.D.
helicarrier, with an 11pm security check-in.
As each S.H.I.E.L.D.
agent checks in, a lone figure breaches security.
He manages to start a download of Nick Fury's video file of The Avengers Initiative, which would assemble Captain America, The Hulk, Iron Man and Thor.
What follows, is Fury's assessment of each hero, a voice-over of a solo adventure featuring each of The Big Four Avengers.
"Avengers Prelude: Black Widow Strikes" is designed to tell a story set between "Iron Man 2" and "Avengers" that explores the character of the Black Widow further than such ensemble films allow. 
In 2011, Bagley ended his collaboration with DC and returned to Marvel and Ultimate Spider-Man, by then known as .
He drew the eventful "Death of Spider-Man" arc in issues #156–160.
The arc reunited him with his original "Ultimate Spider-Man" collaborator, Brian Michael Bendis, for the first time since Bagley's departure from Marvel.
Bagley and Brian Michael Bendis re-teamed again for a creator-owned series, "Brilliant", which is published through Marvel's Icon Imprint.
It has similarities to Mark Millar's own Icon comic, "Kick-Ass", as it explores the idea of superheroes existing in the real world, however unlike "Kick-Ass", the characters have actual super-powers.
Brian Michael Bendis and Bagley will also work on "Avengers Assemble", an Avengers title that they will produce concurrently with "Brilliant".
To differentiate between other "Avengers books", "Assemble" will consist of the Avengers roster present in the upcoming Avengers film, but the book will be set in present Marvel continuity.
As part of the Marvel NOW!
initiative, Bagley has taken over pencilling duties on Fantastic Four alongside new writer Matt Fraction. 
Marvel publisher Dan Buckley stated that the "Heroic Age" was intended to be more constrained in its scope than previous initiatives:The initiative began in May 2010's "Avengers" #1, which reunited Iron Man, Captain America, Thor, and Hawkeye as teammates.
The same month saw the start of a four-issue comics anthology limited series called "Age of Heroes", with Kurt Busiek writing the lead story.
The idea behind the series is that, according to Tom Brevoort, "seeing as how Heroic Age will impact on characters both large and small, we thought it might be fun to do an anthology to delve into some of these stories and to touch upon some of these characters".
Busiek's story involves J. Jonah Jameson, whereas Rick Remender's stars Doctor Voodoo, and Paul Cornell features Captain Britain and MI13 and the Young Masters.
The initiative also saw the debut of a new series, "Atlas", featuring the Agents of Atlas, written by Jeff Parker.
The "Thunderbolts" series, also written by Parker, featured a new Heroic Age line-up, led by Luke Cage (who is also in the lineup of the New Avengers), Crossbones, Juggernaut, Ghost, Moonstone, Songbird and Man-Thing.
Another series launched was "Secret Avengers" by writer Ed Brubaker.
The New Avengers series was relaunched in June 2010, written by Brian Michael Bendis and drawn by Stuart Immonen.
A new series called "Avengers Academy" by Christos Gage and Mike McKone debuted in June 2010, as well as a new "Young Allies" series written by Sean McKeever and David Baldeon. 
In the aftermath of the Skrull invasion, Cassie leaves the Initiative.
Cassie and Vision (who she now refers to as her boyfriend) fly to the Avengers Mansion ruins, having been summoned by Wiccan with warnings of a great magical threat.
They arrive and find the other Young Avengers turned to stone, and then encounter the Scarlet Witch, who transports them away to be a part of The Mighty Avengers, led by Hank Pym.
She is willing to help her new-found friends and allies in multiple adventures and missions on more than one occasion despite conflicting loyalties.
At one point, Hank Pym needs a device Reed Richards will not let him have in order to save his laboratory.
Instead of participating in a battle as her team does, Stature goes against plan and tells everything to Susan Richards, because she feels the Fantastic Four are more family then anything.
Cassandra's distrust of the woman who killed her father led her to expose that the Witch was in reality, Loki in disguise.
While part of the team, Lang also fought a demi-god at Mount Wundagore, and a homicidal ancient Inhuman.
A later battle brings the team world-wide popularity due to a successful mission into the investigation of an energy-wracked scientific facility, due to a Cosmic Cube on the premises.
They team up with the official government Avengers to deal with the crisis; however Cassandra and the others are in just as much danger from the official Avengers team, as they are led by the murderous businessman Norman Osborn, who has stocked the team with spree killers and other villains.
The Mighty Avengers, like most other heroes, are on his 'list' and only their popularity kept them from being murdered as soon they met on the lawn of the facility.
Normon Osborn later makes a play to take down the home of the Gods, Asgard.
Cassandra is drawn into the defense.