List of Pokémon the Series series and seasons

This is a list of Pokémon the Series, or , series and seasons across the world. The Pokémon Company International produces season divisions divided by the subtitle of the series and its accompanying opening theme song. The division of seasons produced by 4Kids Entertainment is based on 52-episode groups grouped according to the episode counting used by the English dub, which is often inconsistent with groups of episodes sharing a story arc title and opening theme song (except for the cases of Seasons 4, 7, and 8). Movies are shown in the middle of a season's run. They are not, however, included in seasons, despite the fact that they are plot-wise related to them. See List of Pokémon movies for movies, and List of special episodes for additional specials.
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The first part of the series takes place in Kanto and the Orange Islands. The series is based on Red, Green, Blue, and Yellow games. 
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Ash Ketchum, a new Trainer from Pallet Town, travels with his starting Pokémon, Pikachu, with the goal of becoming the Pokémon Champion. His opponent, Gary Oak, however, stands in his way and disparages him at every chance. Ash travels around the Kanto region with Misty, Gym Leader of Cerulean City, who wants to become a Water Pokémon Master, and Brock, Gym Leader of Pewter City, who wants to become a Pokémon Breeder, while being pursued by the Team Rocket Trio - Jessie, James, and Meowth. He captures a large number of Pokémon and challenges the Gym Leaders—Brock, Misty, Lt. Surge, Erika, Sabrina, Koga, and Blaine. The heroes also encounter Bruno, a member of the Elite Four. Ash goes to the Indigo League after obtaining the previous badge, intending to win the Tournament.
The story arc consists of 82 episodes, from to . In terms of seasons, all 55 episodes from "Pokémon - I Choose You!" to (excluding and ) are the entirety of Season 1 and the rest of the episodes ("Princess vs. Princess", "The Purr-fect Hero", and to the rest of Indigo League) are the first 27 episodes of Season 2.
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After the events in the Kanto region, Ash goes with Brock and Misty to the Orange Islands, where he gives a strange-looking ball to Professor Ivy. Brock decides to leave Ash and Misty, who find a new friend in a Pokémon.
The story arc consists of 36 episodes, from to . In terms of seasons, "Pallet Party Panic" to are the last 25 episodes of Season 2 while to "The Rivalry Revival" are the first 11 episodes of Season 3.
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The original series' second instalment takes place in Johto. The Pokémon Gold & Silver Version and Pokémon Crystal Version games are used to create these seasons.
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Brock joins Ash and Misty on their travels once more as Tracey decides to become Prof. Oak's assistant. The three travel to the Johto region to deliver the mysterious GS Ball to Kurt, a Poké Ball expert. In this new region, however, new rivals appear, such as the rookie trainer, Casey. On their way, Ash, Misty, and Brock meet Falkner and Bugsy, the Gym Leaders of Violet City and Azalea Town, whom Ash manages to defeat.
The story arc consists of 41 episodes, from to . This story arc title is given to all of the Johto episodes that were dubbed and aired during Season 3, which ran for 52 episodes beginning with the last 11 episodes of Pokémon: Adventures in the Orange Islands ("The Pokémon Water War" to "The Rivalry Revival").
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The heroes continue their journey through the Johto region. When he first challenges the Goldenrod Gym, Ash is defeated by Whitney, but he manages to bypass her strategy and win his third Johto badge in a rematch. Afterward, the heroes meet their friends from the Kanto region before and after arriving in Ecruteak City, where the Gym Leader Morty lives. Continuing towards the west, Ash's battle against Jasmine is postponed, as Olivine City's Amphy, an Ampharos, serving as the light source for the lighthouse, is sick. Fortunately, the heroes take a plane to Cianwood City, where Amphy's medicine is purchased, while Ash has a Gym battle with the Gym Leader Chuck.
The season consists of 52 episodes, from to . It is the first season whose division begins and ends with every episode sharing a single title and opening theme song.
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Returning to Olivine City, the heroes resolve a crisis involving the Team Rocket organization and the legendary Pokémon, Lugia. Winning the battle against Jasmine, Ash heads with his friends through Ecruteak City and travels to Mahogany Town. However, Team Rocket makes their second incident in Johto by forcing Pokémon to evolve. Guided by Lance, the Johto Champion, the heroes manage to cripple Team Rocket's power. Managing to obtain Pryce's badge at Mahogany Town, Ash, Misty and Brock go to Blackthorn City. Meowth, James, and Jessie make trouble in the town, trying to take the Dragon Fang and even upset a Dragonite (GS137: Great Bowls of Fire!) who goes on a rampage. Fortunately, the Dragonite is stopped and Ash manages to defeat Clair, the final Gym Leader. Going towards the Johto League, Ash picks up an egg, which hatches into a Larvitar, who is taken to Mt. Silver to its mother. Managing to enter the Johto League championship tournament, Ash battles his opponents, including Gary, but is defeated by Harrison, who suggests going to Hoenn. After the long journey, Ash bids farewell to Misty and Brock and goes to Hoenn, but trouble arises when his Pikachu gets hit by Team Rocket's magnet.
The story arc consists of 65 episodes, from to . This is the final story arc of the two original series of Generations I and II. In terms of seasons, all 53 episodes up to are the entirety of Season 5 and the last 12 episodes ( to "Hoenn Alone!") are the first twelve episodes of Season 6.
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This series takes place in Hoenn and Kanto. It is based on Ruby, Sapphire, FireRed, LeafGreen and Emerald games.
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After returning home following his journey in the Johto region, Ash, in his new outfit, and Pikachu head to Hoenn. There, they meet their new friends, May and her younger brother, Max, then they meet Brock in his new outfit.
The story arc consists of 40 episodes, from to . This story arc title is given to all of the Hoenn episodes that were dubbed and aired during Season 6, which ran for 52 episodes beginning with the last 12 episodes of Pokémon: Master Quest ("Address Unown!" to "Hoenn Alone!").
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On their way to Lavaridge Town, Ash and Brock meet Misty in her new outfit, who has come to visit, and May and Max meet her for the first time.
This season consists of 52 episodes, from to .
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Our heroes travel to Mosdeep City and then Sootopolis. May competes in the Hoenn Grand Festival and Ash in the Hoenn Pokémon League Championship. The group then travels to the Kanto region.
This season consists of 52 episodes, from to , with the additional movie special, Pokémon: Lucario and the Mystery of Mew.
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Our heroes are happily traveling together for May's Kanto contest battles and Ash's battle frontier battles.
This season consists of 47 episodes, from to .
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This series takes place in Sinnoh and is based on the Diamond, Pearl, Platinum, HeartGold, and SoulSIlver games.
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With their second journey in Kanto over, Ash, Pikachu, and Aipom decide to head to the Sinnoh region. There, they meet the aspiring Pokémon coordinator Dawn and reunite with Brock.
This season consists of 51 episodes, from to .
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On their way to Veilstone City, Ash and Dawn trade Pokémon. Then, Ash and Brock meet May in her new outfit, who has come to visit the region, and Dawn meets May for the first time.
This season consists of 52 episodes, from to .
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On their way to Canalave City, our heroes battle against the villainous Team Galactic.
This season consists of 52 episodes, from to .
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On their way to Sunyshore City, our heroes gladly travel together. After the Sinnoh league, it's time for Ash and Brock to head back to Kanto, with Dawn deciding to travel to Johto.
This season consists of 34 episodes, from to .
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This series takes place in Unova and is based on the Black, White, Black 2 and White 2 games.
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Ash and co. set off, learning about the White Ruins, and come across N and meet Cheren, the Gym Leader of the gym in Aspertia City. They then head off to counter the evil plot of Team Plasma.
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Having a fresh start, Ash goes to Unova with his mother and Professor Oak. Once arriving there, Ash encounters a new trainer, Trip, who becomes his new rival. Ash decides to travel through Unova and encounters a girl, named Iris, who aspires to be a Dragon Master. Together, they travel to Striaton City, where Ash faces three Gym Leaders: Chili, Cress, and Cilan. The latter is moved by Ash's strategy and decides to accompany him throughout Unova. On the road, Ash meets up with a clumsy girl, Bianca, who becomes his rival. The heroes travel to Nacrene City, where Ash battles the Gym Leader, Lenora. Despite his loss, Ash trains in the local fighting club and manages to defeat Lenora in a rematch. Passing through Castelia City (where Ash fights Burgh, the bug-type expert), the heroes encounter more rivals, as Iris faces Georgia, Cilan meets Burgundy and Ash finds Stephan. They arrive at Nimbasa Town, where they participate in the local battling tournament, in which Iris wins. Once done, they arrive at Nimbasa City but find Team Rocket causing trouble, as the trio is to capture all the Poké Balls from the Pokémon Center. Fortunately, with the assistance of Subway Bosses Ingo and Emmet, Ash, Iris, and Cilan save the Poké Balls.
This season consists of 48 episodes, from to .
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Our heroes get ready for Ash's gym battle in Nimbasa City. Later after feeling proud of Ash for having all eight badges, Ash meets up with Dawn, who has come to visit like Misty and May did, and Iris and Cilan meet Dawn for the first time.
This season consists of 49 episodes, from to .
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Soon our heroes make it to the Unova League where Ash competes. Later, Ash knows that his Charizard has enough training in Charicific Valley, then starts traveling on the Decolore Islands until they reach Kanto. Then Iris and Cilan depart, and Ash and Alexa head to Pallet Town. Finally, Ash changes into his new outfit, then gets ready to go to Kalos with Alexa.
This season consists of 45 episodes, from to .
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This series takes place in Kalos and is based on the X, Y, Omega Ruby, and Alpha Sapphire games.
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Arriving in the Kalos region, Ash meets Lumiose City's Gym Leader, Clemont (Ash doesn't know the fact that Clemont is a Gym Leader yet), and his sister, Bonnie. Together, they arrive at Santalune City, where they encouter Serena, a friend of Ash's from before he was a Trainer. Ash loses his gym match against Viola, sister of Alexa, whom Ash met during his adventures in the Unova Region. With some training and support, Ash manages to defeat Viola and goes with Serena (who he now remembers after the battle), Clemont, and Bonnie through the region. On their way to Cyllage City, they come to the Battle Chateau, where they find Viola battling Grant, the Gym Leader, whom Ash manages to defeat later on. Soon after, the heroes meet the Champion and famous actress, Diantha, who possesses the power of Mega Evolution and Korrina, the Gym Leader, who manages to obtain a Key Stone for her Lucario. However, Lucario goes berserk, so the heroes follow Korrina, whose grandfather, Gurkinn, sends her to speak to Mabel. After resolving the situation, the heroes go to a Summer Camp, where they meet Tierno, Trevor, and Shauna, their new rivals. After passing the camp, the heroes arrive at the Tower of Mastery at Shalour City. In an intense battle, Ash and Pikachu defeat Korrina and her Mega Lucario, earning their third badge.
This season consists of 48 episodes, from to .
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The heroes meet new friends and rivals as they continue onwards. As Ash manages to defeat Ramos, Serena has her first Showcase in Coumarine City but loses and makes a major change in her appearance. To prepare for the Gym Match, Clemont flies off to Lumiose City, while Ash, Serena, and Bonnie meet up with Aria. Ash defeats Clemont in a heated Gym Battle and goes to Laverre City, where the heroes meet Ash's rival, Sawyer, and the specialist in Fairy-type Pokémon, Valerie. With his sixth badge, Ash goes with Bonnie, Clemont, and Serena to Anistar City. On their way, Serena wins her first Showcase in Dendemille Town, against Miette, who also participated in the Showcase. When arriving there, the heroes meet up with their rivals, Tierno and Shauna, who have a Tag Battle to give Serena's new Pokémon, Eevee, some confidence. Serena, along with her rivals, Shauna and Nini, enters the Anistar City's Showcase and wins her second Princess Key. Ash also manages to defeat Olympia and earns the seventh badge - the Psychic Badge. Olympia, however, has a vision of the heroes and Team Rocket having a major role in an incoming crisis.
This season consists of 45 episodes, from to .
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Bonnie and the gang meet what seems to be a brand new Pokémon, and Bonnie decides to keep it, naming it Squishy (Unbeknownst to our heroes, Squishy is one of the 2 cores of the Legendary Pokemon, Zygarde). On their way to Snowbelle City, our heroes hope Ash wins his final badge, and that Serena wins the final princess key in Fleurrh City, qualifying her for the Master Class. Ash also meets a new rival, Alain, who we later learn is studying and collecting Mega Evolution energy for Team Flare to help his friend Mairin. Serena goes on to place 2nd in the Showcase Master Class, just behind Aria. Ash and Greninja start tuning into a strange transformation power they share - a legend called the Bond Phenomenon - and that eventually helps them win their 8th badge in Snowbelle City. Ash competes in the Kalos League, and is a runner up to Alain, but the award ceremony is cut short as Lysandre and Team Flare launch an attack with their Zygarde core, hoping to rebuild the world. Ash, his friends, and the Kalos Gym leaders team up to rescue Mairin's Chespie, break Z-2 out from it's mind control, and protect the Anistar City Sundial. Later, after defeating Team Flare and returning Squishy to Z-2, it's time for Serena to take flight to Hoenn to compete in Pokémon contests and for Ash to travel home.
This series consists of 47 episodes, from to . The series ended off with two TV specials: (which the dub considers episode 48) and the undubbed special , which featured the return of Cilan.
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This series takes place in Alola. The series is based on Sun, Moon, Ultra Sun and Ultra Moon.
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This season features Ash Ketchum and his Pikachu as they attend a school in the Alola region. Ash catches new Alola Pokémon and learns about the region's secrets and mysteries. While Ash's classmates and Samson Oak visit Kanto, Misty and Brock come to visit.
This series consists of 43 episodes, from to .
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Ash Ketchum and his Pikachu continue to attend a school in the Alola region, catch new Alolan Pokémon, and learn about the region's secrets and mysteries. During this season, Ash and his classmates encounter the legendary Pokémon Nebby, Lillie's mother, Lusamine, and the Ultra Beasts that could jeopardize the Alola region.
This series consists of 48 episodes, from to .
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This season features Ash and Pikachu as they continue to attend a school in Alola and the region adopts its own version of the Pokémon League.
This series consists of 54 episodes, from to .
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This series takes place in all regions. The series is not based on any particular generation. However, it began airing to coincide with the release of Pokémon Sword and Pokémon Shield.
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This season features Ash and Pikachu as they help Professor Cerise run the Cerise Laboratory and research Pokémon and their behavior. Ash traverses the Kanto, Johto, Hoenn, Sinnoh, Unova, Kalos, Alola, and Galar regions along with Goh, a new Trainer from Vermilion City. His goal is to catch every single Pokémon known to man, working his way up to Mew. Ash's goal in the season is to compete in the World Coronation Series (Pokémon League Generation VIII equivalent in the anime). He wants to defeat the champion Leon.
This season consists of 48 episodes, from to .
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This season continues the research fellowship adventures of Ash Ketchum, Goh and Chloe Cerise, as they travel across all eight regions, including the new Galar region from Pokémon Sword and Shield and the Galar region's Crown Tundra from Pokémon Sword and Shield: The Crown Tundra, based at Cerise Laboratory in Vermilion City in the Kanto region.
This season consists of 42 episodes, from to .
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This season consists of 58 episodes, starting with the 46 from to that complete the normal storyline, to to that are part of .
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