Timeline of events in Pokémon the Series: Black & White

In , Ash Ketchum travels to the distant Unova region with his partner to continue his quest to become a Pokémon Master. In this new land, he meets new in , an aspiring Dragon Master, and , a Pokémon Connoisseur and Gym Leader. Together, they travel through the region as Ash aims to collect eight Gym Badges to compete in the Unova League and Iris keeps working towards her goal of becoming a Dragon Master. Along the way, they face challenges from rivals like Trip and threats posed by the evil machinations of the villainous organizations Team Rocket and Team Plasma.
Following their adventures in Unova, the group departs from the region and sets out to sail through the Decolore Islands on their way to the Kanto region.
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==Timeline==
These events are listed in chronological order as opposed to solely release order.
===Unova===
Episode 	Details
In The Shadow of Zekrom! 	
* is revealed to have changed into a .
* Ash and travel with and to the Unova region, where Professor Oak is attending a conference.
* Ash learns that all of the Pokémon that live in the Unova region cannot be found in Kanto, Johto, Hoenn, or Sinnoh.
* also arrive in the Unova region, having being assigned there by .
* Pikachu becomes temporarily unable to use attacks after being hit by lightning caused by .
* Ash meets Professor Juniper and travels to her laboratory in Nuvema Town.
* Ash meets a photographer and beginning by the name of Trip.
* Trip obtains a from Professor Juniper as his first partner Pokémon.
* Professor Juniper's Oshawott starts to follow Ash.
* Ash has his first against Trip and loses.
Enter Iris and Axew! 	
* appears again, and recovers his powers.
* decides to remain in Unova and challenge its Pokémon League.
* Ash leaves his Sinnoh Pokémon under 's care.
* Ash receives a new Pokédex and five s from Professor Juniper.
* Ash learns the first Unova League Gym is in Striaton City.
* Ash meets a mysterious girl named and her .
* Iris decides to follow Ash on his .
* Jessie and James are revealed to have left all of their Pokémon at .
* Ash tries and fails to a .
* Ash catches a .
* Jessie catches a .
* Iris encounters for the first time.
* is revealed to know .
A Sandile Gusher of Change! 	
* The from Professor Juniper's laboratory that has been following joins his team.
* A wild Sandile begins following Ash.
The Battle Club and Tepig's Choice! 	
* and arrive in Accumula Town.
* Ash visits a Battle Club and meets a Don George for the first time.
* Ash finds a that had been abandoned by his Trainer and him.
* The Team Rocket trio receives a mission by to head to Striaton City.
Triple Leaders, Team Threats! 	
* and arrive in Striaton City and meet , a Pokémon Connoisseur and one of the local Gym Leaders, as well as his brothers and fellow Striaton Gym Leaders, Chili and Cress.
* Rather than challenging just one of the Striaton Gym Leaders, Ash chooses to challenge each of the three Leaders to a Gym , with best two out of three counting as a victory.
* Ash's Tepig and are both revealed to know .
* The Team Rocket trio receives a mission from to capture the "Future Energy" in the Dreamyard.
* Ash defeats Chili, loses to Cress, and starts his battle with Cilan.
Dreams by the Yard Full! 	
* Ash's Oshawott is revealed to know .
* defeats , ending his Striaton Gym challenge with two victories out of three and thus earning him his first Unova League Badge, the .
* Ash, , and Cilan meet Fennel for the first time.
* Jessie, James, and successfully complete their mission of obtaining and transmitting data from the Dreamyard.
* Cilan meets for the first time.
* Ash, Iris, and Cilan agree to travel together through Unova.
* Ash learns that the next Unova Gym is in Nacrene City, and decides to head there.
Snivy Plays Hard to Catch! 	
* informs of the presence of another villainous team.
* Jessie tries and fails to catch a .
* catches the that Jessie failed to catch.
Saving Darmanitan From the Bell! 	
* The Team Rocket trio receives a mysterious item, and are instructed to head to Nacrene City.
The Bloom Is on Axew! 	
* Iris's Axew is revealed to know and .
* The Team Rocket trio is told to head to the Desert Resort.
* and learn from how she got her Axew.
* Iris is revealed to own an .
A Rival Battle for Club Champ! 	
* Trip is revealed to have won the from Chili, as well as .
* It is revealed that, like Nurse Joy and Officer Jenny, there is a Don George that runs a Battle Club in multiple cities across the Unova region.
* re-encounters Trip, whom meets for the first time, while reveals that he has met him before.
* Trip is revealed to have obtained five new Pokémon, including a and a .
* The Team Rocket trio meets Pierce, another member of Team Rocket, for the first time.
* Trip's is revealed to have evolved into a .
* Ash's Snivy is revealed to know .
* Ash battles Trip for the second time and loses again.
A Home for Dwebble! 	
* Cilan's Pansage is revealed to know .
* The Team Rocket trio receives and complete a mission to steal data concerning the Meteonite from the Antimony Research Lab.
* catches a .
Here Comes the Trubbish Squad! 	
* The Sunglasses Sandile is revealed to know .
* The Team Rocket trio receives a dummy Meteonite from a Team Rocket agent.
* receives a Pokémon Egg from Karena.
Minccino-Neat and Tidy! 	
* and meet , a beginning .
* Ash receives a new Badge case from Bianca, given to her by Professor Juniper.
* The Team Rocket trio arrives in Nacrene City.
* Bianca a .
* Ash battles Bianca and wins.
A Night in the Nacrene City Museum! 	
* and arrive in Nacrene City and meet Lenora, the local Gym Leader.
* The Team Rocket trio meets Pierce again, and are instructed to break into the Nacrene Museum to steal a meteorite and replace it with the fake that was previously given to them.
The Battle According to Lenora! 	
* battles Lenora in his second Unova Gym match and loses.
* The Team Rocket trio steals the Meteonite from Museum.
Rematch at the Nacrene Gym! 	
* Ash's Oshawott learns , although it is not perfected.
* Ash's Tepig learns .
* has a rematch with Lenora and manages to defeat her, earning the .
* Ash learns that the next Unova Gym is located in Castelia City, and decides to head there.
Scraggy-Hatched to be Wild! 	
* 's hatches into a .
* The Team Rocket trio delivers the Meteonite they stole from Museum to Dr. Zager for analysis.
* Ash and battle each other for the first time using Scraggy and , respectively; the battle ends in a draw.
Sewaddle and Burgh in Pinwheel Forest! 	
* and reach Pinwheel Forest and meet Burgh, the Castelia City Gym Leader.
* Ash catches a .
* Ash sends an unknown Pokémon in his party to Professor Juniper and adds Sewaddle to his team.
A Connoisseur's Revenge! 	
* is revealed to be an A-class Pokémon Connoisseur.
* and meet a C-class Connaisseuse named Burgundy, an old challenger of Cilan's.
* Ash's Sewaddle is revealed to have as his Ability.
* Cilan's Dwebble is revealed to have as its Ability.
* Cilan has a rematch against his new rival Burgundy and wins.
Dancing With the Ducklett Trio! 	
* Ash's Pikachu learns .
* The Sunglasses Sandile evolves into a Krokorok.
The Lost World of Gothitelle! 	
* returns to his team and sends to Professor Juniper.
* Ash and cross the Skyarrow Bridge en route to Castelia City.
A Venipede Stampede! 	
* Team Rocket locates the Meteonite in the Desert Resort.
* and arrive in Castelia City and meet up with Burgh again.
* Ash encounters Trip again.
* Trip is revealed to have obtained a .
* Ash's evolves into a .
* heads to Unova as Team Rocket's plan for the Meteonite enters its final stages.
* Ash, and meet up with Professor Juniper and leave to investigate the unusual activity caused by Team Rocket in the Desert Resort.
Battling For The Love of Bug-Types! 	
* 's evolves into and learns .
* Ash battles Burgh in his third Unova Gym match and wins, earning him the .
* changes back to their white uniforms.
* James catches a .
Emolga the Irresistible! 	
* is revealed to have joined .
* Bianca tries to catch an , but fails.
* catches the that Bianca failed to catch.
Emolga and the New Volt Switch! 	
* battles both and with no official winner.
* Iris's Emolga begins to disobey her.
* Iris's Emolga develops a rivalry with Ash's Snivy.
* Bianca leaves .
Scare at the Litwick Mansion! 	
* James's Yamask is revealed to know .
The Dragon Master's Path! 	
* reveals that her goal is to become a Dragon Master.
* James's Yamask is revealed to know .
* Iris's Axew masters .
Oshawott's Lost Scalchop! 	
* and meet a named Stephan.
Ash and Trip's Third Battle! 	
* and meet up with Trip again.
* Trip is revealed to have obtained a and a and won two more Badges.
* Trip tries to a , but fails when Ash accidentally interrupts the encounter.
* Ash learns about Alder, the Unova League .
* Ash learns that cannot aim on target when using due to a fear of opening his eyes underwater.
* Ash challenges Trip to a three-on-three battle, which ends in a tie.
Facing Fear with Eyes Wide Open! 	
* Ash's Oshawott overcomes his fear of opening his eyes underwater and perfects as a result.
* catches a .
* catches a .
Iris and Excadrill Against the Dragon Buster! 	
* meets a named Georgia, who begins a rivalry with .
* Iris is revealed to have her as a .
* Iris is revealed to have battled Drayden and lost.
* Iris's Excadrill is revealed to know or have known , , and .
* Excadrill regains his trust in Iris and also learns .
Gotta Catch A Roggenrola! 	
* catches a .
Archeops In The Modern World! 	
* and meet Professor Juniper and Fennel again.
* steals data about Fennel's Fossil restoration machine.
A Fishing Connoisseur in a Fishy Competition! 	
* and encounter again.
* catches a . However, it is later .
* Bianca encounters for the first time.
* James's Yamask is revealed to know .
Movie Time! Zorua in "The Legend of the Pokémon Knight"!	
* and meet Luke.
* The group learns about an upcoming battle tournament that is being held at the local Battle Club.
Reunion Battles In Nimbasa! 	
* The Team Rocket trio arrives in Nimbasa City.
* and enter the Club Battle, along with Luke, , Burgundy, Georgia, Stephan, and Trip.
* Stephan's is revealed to have evolved into a .
* Georgia defeats and advances to the second round.
* Burgundy is revealed to have obtained a .
* Ash defeats Burgundy and advances to the second round.
* and Trip prepare to start their first round battle.
Cilan Versus Trip, Ash Versus Georgia! 	
* Trip's is revealed to have evolved into a .
* Cilan's Dwebble is revealed to have learned .
* , Stephan, Luke, and defeat Trip, , Scooter, and Jimmy Ray, respectively, advancing them to the second round.
* Georgia is revealed to have obtained a .
* begins his battle with Georgia.
The Club Battle Hearts of Fury: Emolga Versus Sawk! 	
* defeats Georgia and advances to the semifinals of the Club Battle.
* Cilan's Stunfisk is revealed to know .
* Luke defeats and advances to the semifinals.
* Stephan is revealed to own a , while Luke is revealed to own a .
* Iris's Emolga is revealed to have as her Ability.
* Emolga begins to obey .
* Iris defeats Stephan and advances to the semifinals.
* Iris learns she will battle Luke in the semifinals.
* Ash begins his battle with Dino.
The Club Battle Finale: A Heroes Outcome! 	
* defeats Dino and advances to the final round.
* Iris's Axew learns .
* defeats Luke and advances to the final round.
* The Team Rocket trio prepares to begin their latest plan.
* Iris defeats Ash and wins the Club Battle, earning a set of wings as a reward.
* Luke leaves the group.
Meowth's Scrafty Tactics! 	
* begins to travel with and , claiming to have been fired from Team Rocket.
* Ash's Scraggy learns .
* attempts to Meowth, but is unsuccessful.
* Jessie and James arrive in Anville Town and begin their plans to sabotage the Nimbasa Subway system.
Purrloin: Sweet or Sneaky? 	
* tries to catch a , not knowing it was already owned, but blocks the , almost resulting in him getting caught by her again.
* Dr. Zager arrives in Anville Town.
Beheeyem, Duosion, and the Dream Thief! 	
* The of the Nimbasa Subway system, Ingo and Emmet, notice Jessie and James's sabotage of the system and begin investigating.
Crisis from the Underground Up! 	
* and arrive in Nimbasa City.
* Ash and meet Ingo and Emmet for the first time, while it is revealed that has met them previously.
* is revealed to have been lying about being fired from Team Rocket and that his joining the group was just part of a plan to steal their Pokémon.
* Meowth rejoins Jessie and James.
* Team Rocket successfully steal all the Pokémon from the Nimbasa City Pokémon Center (including those belonging to Ash, Iris, and Cilan) and make a getaway using the Nimbasa Subway Network.
Battle for the Underground! 	
* Ash's Tepig learns .
* and , with the help of Ingo and Emmet, retrieve all of the Pokémon stolen by , including their own, and force them to withdraw from Nimbasa City.
Enter Elesa, Electrifying Gym Leader! 	
* and meet again and also meet Elesa, Nimbasa Gym's Gym Leader.
* Bianca's father appears to take his daughter home with him, not wanting her to continue her Pokémon journey.
* Bianca is revealed to have obtained a .
* Bianca has a Gym with Elesa but loses.
* Ash has a battle with Bianca's father and loses.
* Bianca's father decides to allow her to keep traveling.
Dazzling the Nimbasa Gym! 	
* has a Gym with Elesa and wins, earning himself the .
* Ash learns from Elesa that the next Gym is in Driftveil City, but has to wait to travel there because the Driftveil Drawbridge is closed for repairs.
Lost at the Stamp Rally! 	
* and challenge the es Ingo and Emmet to a Tag Battle, but they lose.
* The Driftveil Drawbridge is repaired, allowing to leave Nimbasa City and head toward Driftveil City.
Ash Versus the Champion! 	
* and meet up with Trip again.
* Trip is revealed to have obtained his fifth Gym Badge.
* Ash and his friends meet the Unova League , Alder.
* Alder challenges Ash to a battle, but then falls asleep during said battle, thus resulting in no official winner.
A Maractus Musical! 	
* learns about Triple Battles and has his first official battle of this type.
The Lonely Deino! 	
* and both attempt to a , but they fail since they already have s.
* The Team Rocket trio prepares to begin their plan to capture the .
The Mighty Accelguard to the Rescue! 	
* and arrive in Driftveil City and meet Clay, the local Gym Leader.
* Ash tries to challenge Clay to a Gym , but Clay refuses.
* destroys the shrine of .
A Call for Brotherly Love! 	
* Chili meets up with in Driftveil City.
* Cilan's Pansage is revealed to know .
* Cilan and Pansage battle Chili and and win.
* prepares for the final stage of their plan to capture the by destroying the shrine of .
* Chili and Pansear battle and and win.
Stopping the Rage of Legends! Part 1 	
* challenges Clay to a Gym for a second time, but Clay refuses again.
* and go on a rampage while summons to stop the destruction.
Stopping the Rage of Legends! Part 2 	
* The Team Rocket trio captures the , but their plans are foiled and they are forced to release them thanks to and .
* stops the rampage of and , and all three Pokémon return to rest.
Battling the King of Mines! 	
* 's evolves into and learns and .
* Ash battles Clay in his fifth Unova Gym match and wins, earning himself the .
* Ash learns that the next Gym is located in Mistralton City and decides to head there.
Crisis at Chargestone Cave! 	
* and meet up with and Professor Juniper again.
* Bianca reveals her intention to trade her with Professor Juniper's in order to evolve both of them.
* 's evolves into and learns .
* The Team Rocket trio steals rocks from Chargestone Cave.
Evolution Exchange Excitement! 	
* trades her for Professor Juniper's .
* Bianca's new Karrablast evolves into , while Juniper's new Shelmet evolves into .
* and battle against Professor Juniper and Bianca in a Tag Battle and win.
* Bianca leaves .
* Ash and meet Cedric Juniper, Professor Juniper's father, for the first time.
Explorers of the Hero's Ruins 	
* and are properly introduced to Cedric Juniper.
* The Sunglasses Krokorok returns to confront .
Battling the Bully! 	
* The Sunglasses Krokorok is revealed to know .
* catches the .
Cilan Takes Flight! 	
* and arrive in Mistralton City and meet Skyla, the local Gym Leader.
* Outraged by Skyla's unconventional battling method, battles Skyla but loses.
An Amazing Aerial Battle! 	
* 's is revealed to know .
* Ash's Tranquill evolves into and learns .
* Ash battles Skyla in his sixth Unova Gym match and wins, earning himself the .
* Ash learns that the next Unova Gym is in Icirrus City and decides to head there.
Climbing the Tower of Success! 	
* and meet up with Stephan again and they all enter the Wishing Bell Festival contest, with Stephan eventually winning.
* Stephan tells the group about the Clubsplosion tournament in Ambiga Town, which they decide to enter.
The Clubsplosion Begins! 	
* , , and Stephan arrive in Ambiga Town and reunite with , Burgundy, Georgia, and Trip, all entering the Clubsplosion.
* Trip and Bianca meet each other for the first time.
* Trip's is revealed to have evolved into .
* Stephan and defeat Edmund and Flora, respectively, advancing to the second round.
* Ash's Scraggy learns , although it is not perfected.
* Ash defeats Angus and advances to the second round.
* and Burgundy begin their battle.
Search for the Clubultimate! 	
* defeats Burgundy and advances to the second round.
* Georgia's is revealed to have evolved into .
* Georgia and Montgomery defeat Gail and Delbert, respectively, and advance to the second round.
* 's is revealed to have evolved into .
* Bianca and Trip begin their battle.
A Clubsplosion of Excitement! 	
* defeats Trip and advances to the second round.
* , Montgomery, Stephan, and Bianca defeat Betty, , , and Georgia, respectively, advancing them to the semifinals.
* Ash learns that he will face off against Montgomery in the semifinals, while Bianca will face Stephan.
Commanding the Clubsplosion Crown! 	
* Stephan defeats and advances to the final round.
* Montgomery defeats and advances to the final round.
* Stephan defeats Montgomery in the final round, winning the Clubsplosion tournament and a year's supply of Vitamins.
* Stephan leaves .
Battling the Leaf Thieves! 	
* 's evolves into .
A Restoration Confrontation! Part 1 	
* The Team Rocket trio returns to try to open a time gate in Twist Mountain.
* The Team Rocket trio's thefts of Fossil restoration data and Chargestone Cave rocks are explained.
* meets Dr. Zager for the first time.
A Restoration Confrontation! Part 2 	
* James's Yamask is revealed to know .
* and stop 's attempts to travel through the time gate in Twist Mountain, forcing them to retreat.
Evolution by Fire! 	
* and meet 's former , Shamus.
* Ash's Tepig evolves into and learns .
* Shamus offers Pignite a spot on his team, but Pignite rejects him.
Guarding the Guardian of the Mountain! 	
* and meet Brycen, the Gym Leader of Icirrus City.
Caution: Icy Battle Conditions! 	
* and arrive in Icirrus City.
* Ash battles Brycen and wins, earning the .
* Ash learns that the next Gym is located in Opelucid City and decides to head there.
Clash of the Connoisseurs! 	
* learns that the Gym in Opelucid City is closed.
* meets with Burgundy again.
* Ash learns that there is a Gym located in Virbank City and decides to go there.
Crisis at Ferroseed Research! 	
* and meet up with Georgia again.
* Georgia is revealed to own a .
An Epic Defense Force! 	
* and arrive in Virbank City and meet up with Luke again.
* The Team Rocket trio prepares to begin their latest operation.
* A wild starts to follow Ash.
* Ash meets Meloetta for the first time.
Rocking the Virbank Gym! Part 1 	
* and meet Roxie, the Virbank Gym Leader.
* Ash begins his with Roxie.
Rocking the Virbank Gym! Part 2 	
* continues his Gym with Roxie and wins, earning himself the and thus completing his requirement for the Unova League.
All for the Love of Meloetta! 	
* learns that Unova's will be held in three months.
* Ash meets up with again, while and meet her for the first time.
* Cynthia announces the Pokémon World Tournament Junior Cup in Lacunosa Town, which decides to participate.
* The Team Rocket trio attempts to capture , but fail.
* Iris and Cilan meet Meloetta for the first time.
* Cynthia is revealed to own a .
* Cynthia agrees to have a battle with Iris, but calls the battle off before a winner is decided.
* Iris's Axew learns .
* Ash and his friends accompany Cynthia to her villa in Undella Town.
* is revealed to be staying at Cynthia's villa.
Piplup, Pansage, and a Meeting of the Times! 	
* and arrive in Undella Town.
* officially joins the group.
* Ash reunites with , with and meeting her for the first time.
* Dawn is revealed to have obtained a new Pokédex and a Xtransceiver.
* Dawn reveals her intention to participate in the Pokémon World Tournament Junior Cup.
* Ash learns that Dawn's has evolved into .
* Cilan challenges Dawn to a friendly battle, which gets interrupted by Meloetta.
* Dawn's Piplup is revealed to have learned and .
PK23 	
* is revealed to know .
Expedition to Onix Island! 	
* is revealed to know .
* Dawn's Piplup is revealed to have learned .
* Ash's Oshawott learns .
Meloetta's Moonlight Serenade 	
* Cilan's Crustle is revealed to know .
* is revealed to know .
Iris and the Rogue Dragonite! 	
* a .
Jostling for the Junior Cup! 	
* and arrive in Lacunosa Town.
* meets Trip, Burgundy, Georgia, and Alder for the first time.
* The Pokémon World Tournament Junior Cup begins.
* An between and Unova Elite Four member Caitlin takes place, ending in a draw.
* Trip's is revealed to have evolved into .
* Burgundy is revealed to have obtained a .
* Trip defeats Burgundy and advances to the second round.
* , Ash, and Dawn defeat their first-round opponents and advance to the next round.
* Iris's Dragonite starts disobeying her.
* defeats Georgia and advances to the second round.
Battling Authority Once Again! 	
* Trip defeats Manning and advances to the semifinals.
* Cilan's Stunfisk is revealed to have learned .
* and defeat Horatio and Geraldo, respectively, advancing to the semifinals.
* Dawn's Mamoswine is revealed to have learned .
* Iris's Dragonite is revealed to know .
* defeats and advances to the semifinals.
* Trip defeats Cilan and advances to the final round.
* Ash and Iris begin their battle in the semifinals.
Ash, Iris, and Trip: Then There Were Three! 	
* begins to obey , but soon starts disobeying her again.
* 's evolves into and learns .
* Ash defeats Iris and advances to the final round.
* Trip defeats Ash in the final round, winning the Pokémon World Tournament Junior Cup.
* Trip begins his battle with Alder.
Goodbye, Junior Cup - Hello Adventure! 	
* Trip continues his battle with Alder and loses.
* and meet , who joins the group.
* The Team Rocket trio discovers an entrance to the Abyssal Ruins.
* Dawn's Quilava is revealed to have learned .
* leaves the group to head to Johto to compete in the Wallace Cup.
* Ash, his friends, and Cameron head to Humilau City.
The Road to Humilau! 	
* , , and arrive in Humilau City and meet Marlon, the Gym Leader of the Humilau Gym.
* Cameron is revealed to own a and a .
* Cameron battles Marlon and wins, earning the , thus fulfilling his requirements to compete in the Unova League .
* Cameron leaves the group.
Unrest at the Nursery! 	
* Ash's Scraggy is revealed to have mastered .
* The Team Rocket trio and Dr. Zager collect the last of the data needed on 's and prepare for the next phase of their plan.
Meloetta and the Undersea Temple! 	
* Team Rocket's Operation Tempest enters its final stage.
* is revealed to know .
* meets for the first time since their unofficial encounter at Mount Quena.
* Giovanni's Persian is seen battling for the first time.
* Ash battles Giovanni with his , but is defeated.
* Team Rocket successfully captures Meloetta and takes it, along with the imprisoned Ash and Pikachu, to the Abyssal Ruins.
* Giovanni uses Meloetta's to unseal the Reveal Glass.
Unova's Survival Crisis! 	
* successfully summons the and uses the Reveal Glass to turn them into their .
* begins to fully obey , though his rogue attitude still remains.
* is freed from Team Rocket's control and manages to calm down the Forces of Nature.
* Giovanni withdraws Team Rocket (including Jessie, James, and ) from Unova and returns to Kanto.
* Meloetta leaves with Ridley.
Beauties Battling for Pride and Prestige! 	
* and learn that the Unova League will be held in Vertress City and decide to visit the Village of Dragons en route.
* Ash and his friends leave 's villa.
A Village Homecoming! 	
* and arrive at 's hometown, the Village of Dragons.
* Ash and meet the and the Opelucid Gym Leader Drayden for the first time.
* Drayden challenges Iris to a at his Gym.
Drayden Versus Iris: Past, Present, and Future! 	
* and arrive in Opelucid City.
* has a rematch with Drayden and loses again.
* Iris finds out that Drayden is considering her to take over as the Gym Leader of Opelucid Gym someday.
Team Eevee and the Pokémon Rescue Squad! 	
* and meet Virgil, a planning to enter the Vertress Conference.
Curtain Up, Unova League! 	
* and arrive in Vertress City, where the Vertress Conference begins.
* Ash, Trip, , , Stephan, and Virgil enter the Vertress Conference, with all of them having earned the eight required Badges.
* Bianca and Stephan meet Cameron for the first time.
* Ash decides to use only his current party Pokémon in the tournament instead of using any of his Pokémon at Professor Oak's Laboratory.
* Stephan defeats Radley in his first round battle, qualifying him for the next round.
* Bianca, Virgil, and Cameron begin their first round battles against Mikael, Ultimo, and Kendrick, respectively.
* Ash begins his battle against Trip.
Mission: Defeat Your Rival! 	
* continues his first round match against Trip and wins, advancing to the second round.
* Ash and Trip make peace with each other.
* Virgil, , and win their battles against Ultimo, Mikael, and Kendrick, respectively, advancing them to the second round.
* Cameron defeats Bianca, advancing to the third round.
Lost at the League! 	
* , Stephan, and Virgil are revealed to have made it through the second round of the Vertress Conference.
* Ash, Stephan, , and Virgil make it through the third round.
* Ash begins his fourth round match against Stephan.
* Stephan is revealed to own a .
Strong Strategy Steals the Show! 	
* Ash's Palpitoad is revealed to have learned .
* Ash's Leavanny is revealed to have learned and uses his Ability for the first time.
* Ash's Krookodile is revealed to have learned .
* wins his match against Stephan, advancing to the quarterfinals.
* and Virgil defeat Kenton and Flora, respectively, advancing them to the quarterfinals.
* Ash and Cameron begin their Full Battle in the quarterfinals.
* Cameron is revealed to own a .
Cameron's Secret Weapon! 	
* and continue their Full Battle in the quarterfinals.
* Ash's Pignite is revealed to have learned .
* Cameron is revealed to own a .
* Cameron's evolves into .
A Unova League Evolution! 	
* loses his Full Battle against in the quarterfinals, placing him in the Top 8.
* Virgil defeats Russet in the quarterfinals, advancing to the semifinals.
* Cameron is revealed to own a .
* Virgil defeats Cameron in the semifinals, advancing to the finals.
* Virgil defeats Dino in the finals, winning the Vertress Conference.
* The Vertress Conference ends.
New Places... Familiar Faces! 	
* and return to Nuvema Town and meet up with Professor Juniper again.
* The Team Rocket trio returns to Unova with their focus back on their original goal: capturing and any other Pokémon they can.
* Jessie and James are revealed to have obtained a and an , respectively.
* Ash, , and decide to explore the in the hopes of meeting .
* Ash learns from Professor Juniper that there is a new Gym in Aspertia City and decides to go there en route to the White Ruins.
The Name's N! 	
* and meet .
* Jessie's Frillish is revealed to know .
There's a New Gym Leader in Town! 	
* and arrive in Aspertia City and meet Cheren, the Gym Leader.
* Ash has an unofficial with Cheren and loses.
Team Plasma's Pokémon Power Plot! 	
* and visit Floccesy Town.
* Looker returns, with and meeting him for the first time.
* Ash and his friends encounter the villainous Team Plasma, as well as their scientist Colress, for the first time.
The Light of Floccesy Ranch! 	
* and visit the Floccesy Ranch.
Saving Braviary! 	
* and meet up with again, and he joins the group.
The Pokémon Harbor Patrol! 	
* and revisit Virbank City en route to the .
* Jessie's Woobat is revealed to have learned .
The Fires of a Red-Hot Reunion! 	
* sends to Professor Oak's Laboratory.
* Ash's Charizard returns and is revealed to have learned , , and .
* Charizard battles Iris's Dragonite, but the battle is called off by .
* Charizard rejoins Ash's team.
Team Plasma's Pokémon Manipulation! 	
* and encounter Team Plasma and Looker again.
* Ash and his friends meet 's foster sisters, Anthea and Concordia, for the first time.
* N is injured during the battle against Team Plasma and is taken to a spring by Anthea and Concordia.
Secrets From Out of the Fog! 	
* and find out that used to be a member of Team Plasma.
* N leaves the group.
* Ash and his friends arrive a short distance away from the Dragonspiral Tower.
Meowth, Colress and Team Rivalry! 	
* attempts to convert Colress to their team, but to no avail.
* Team Rocket decides to head to the .
Ash and N: A Clash of Ideals! 	
* and are escorted to the by Cedric Juniper's assistant, who later is revealed to be an undercover Looker.
* Ash and his friends meet up with Cedric Juniper and again.
* Cedric Juniper finds the Light Stone, but it is taken away by N.
* Team Plasma begins their operation by attacking the White Ruins.
Team Plasma and the Awakening Ceremony! 	
* Team Plasma continues their attack on the .
* surrenders the Light Stone to Team Plasma in exchange for Colress freeing Ash's Pikachu from his control.
* Ghetsis arrives and starts the ritual of awakening .
What Lies Beyond Truth and Ideals! 	
* Ghetsis summons and takes control of .
* Anthea and Concordia arrive at the to aid in the battle against Team Plasma.
* meets Looker again.
* Colress's machine is destroyed, freeing all the controlled .
* Looker arrests Ghetsis, Colress, and the other Team Plasma members, thereby bringing down the team.
* leaves with Anthea and Concordia.
===Decolore Islands===
Episode 	Details
Farewell, Unova! Setting Sail for New Adventures!	
* Professor Juniper prepares to send the Pokémon she's been keeping for to .
* Ash and leave Unova for Kanto, via the Decolore Islands.
Danger, Sweet as Honey! 	
* and arrive in the Decolore Islands.
Crowning the Scalchop King! 	
* takes part in and wins the Scalchop King Competition.
* As per winning the competition, Ash's Oshawott is expected to stay on Scalchop Island, but his scalchop breaks due to the shock of a rejected love, disqualifying Oshawott and allowing him to continue traveling with Ash.
To Catch a Rotom! 	
* and meet in person for the first time.
* Professor Oak catches a .
* and decide to keep traveling the Decolore Islands by ship instead of going to Kanto with Professor Oak.
The Path That Leads to Goodbye! 	
* tries and fails to a .
Capacia Island UFO! 	
* finds an Amulet Coin.
The Journalist from Another Region! 	
* and meet , a reporter from the Kalos region.
* Ash and his friends learn about the Kalos region.
* Ash wins a Pokémon Sumo Tournament, earning a Focus Band as a reward.
* Alexa joins Ash and his friends during their travels to Kanto.
Mystery on a Deserted Island! 	
* meets for the first time.
A Pokémon of a Different Color! 	
* meets Clair again, while and meet her for the first time.
* Clair is revealed to have caught the of the Dragon Holy Land.
* Clair catches a .
Celebrating the Hero's Comet! 	
* is revealed to own a .
Team Rocket's Shocking Recruit! 	
* Iris's Emolga temporarily joins .
Survival of the Striaton Gym! 	
* and meet up with Chili and Cress again.
* Cilan's Pansage is revealed to have as his Ability.
Best Wishes Until We Meet Again! 	
* , , and arrive in Kanto.
* and decide to head to Johto by train, thus separating from Ash and Alexa, who head on to Pallet Town.
The Dream Continues! 	
* and arrive in Pallet Town.
* Ash decides to head to the Kalos region in order to challenge its Pokémon League.
* Ash leaves all of his Pokémon in rotation, except , at Professor Oak's Laboratory.
* Jessie and James give their Unova Pokémon to at the , while Jessie retrieves her .
* Ash learns that Alexa's sister is a Gym Leader in Kalos.
* Ash receives from .
* decides to follow Ash to Kalos.
* Ash and Alexa leave Kanto for the Kalos region.
BWS01 	
* tries and fails to a .
* Cilan meets for the first time, but neither are formally introduced to each other.
** In the process, Brock is revealed to have traveled to Johto again.
* Cilan's Pansage is revealed to know .
BWS02 	
* arrives in Blackthorn City and meets up with Clair again.
* Iris has a with Clair and loses.
* Iris catches a .
* Iris sees a and decides to follow it.
==Related articles==
* Timeline of events in Pokémon the Series
** The Beginning
** Gold and Silver
** Ruby and Sapphire
** Diamond and Pearl
** XY
** Sun & Moon
** Journeys
* Timeline of events in Pokémon Horizons: The Series
Category:Pokémon animated series
Category:Lists