Join Satoshi, accompanied by his partner Pikachu, as he travels through many regions, meets new friends and faces new challenges on his quest to become a Pokémon Master.
In Pallet Town, a young Ash Ketchum is beside himself with anticipation—he’s going to Professor Oak’s Pokémon Camp! But when the day arrives, he oversleeps, and Professor Oak and the other campers leave without him. Two of the young campers, Goh and Chloe, become separated from the group and encounter the Mythical Pokémon Mew—and Goh vows to catch it someday! Meanwhile, a once-lonely Pichu is spending its days with a group of friendly Kangaskhan, but when the time comes for it to set off on its own, it suddenly evolves into Pikachu! After some time, Pikachu ends up at Professor Oak’s lab…and the rest is history!
Ash is attending the opening of Professor Cerise’s new research laboratory in Vermilion City, but the day’s events take an unexpected turn when the Legendary Pokémon Lugia appears nearby! Ash rushes to battle it, but when he jumps onto the massive Pokémon’s back, he finds he’s not alone! A boy named Goh is there, too, documenting everything he can about Lugia. The Pokémon takes Ash and Goh on an amazing adventure, with Goh capturing it all on camera. Professor Cerise is so impressed with the results, he offers Ash and Goh positions as research fellows at the lab—which they both gladly accept!
Ash and Goh are embarking on their first full day as research fellows at Professor Cerise's Laboratory, and the excitement starts right away! There’s an outbreak of Ivysaur and Bulbasaur in Vermilion City, and armed with their new Rotom Phones, our heroes set out to investigate. It turns out the Pokémon are trying to reach a favorite sunbathing spot, but the land is now a construction site for a Gym. Ash and Goh follow as the Pokémon climb the Gym tower—but Team Rocket isn’t far behind! Ash, Pikachu, and the Ivysaur send the trio packing…and then our heroes watch in awe as the triumphant Ivysaur evolve into Venusaur!
Ash and Goh head to the Galar region to see a phenomenon where Pokémon grow giant-sized, but it’ll be a while before their train departs. Making the best of the layover, they grab a snack, but a mischievous Scorbunny and a trio of Nickit distract them and make off with their food—along with Ash’s backpack! Our heroes pursue the Pokémon, but when Scorbunny gets caught by an angry shopkeeper, Goh tries to help the Pokémon by claiming to be its Trainer! The shop keeper knows the truth, but he lets the Pokémon go, and Ash and Goh eventually return to the train…with Scorbunny secretly trailing close behind!
It’s time for research fellows Ash and Goh to explore the Galar region’s Wild Area, known for Dynamax—a phenomenon in which Pokémon can grow to many times their normal size. Our heroes’ train ride there is filled with anticipation…and that mischievous Scorbunny has secretly come along for the ride. They come across a Snorlax who suddenly grows to gigantic size and sprawls across a railroad crossing, still fast asleep! As the train speeds toward them, Scorbunny shows up to help. Working together, they get the Dynamax Snorlax out of the way in the nick of time—and Scorbunny convinces Goh to become its Trainer!
After catching Scorbunny and learning about his Pokédex, Goh is determined to catch lots more Pokémon! But it’s slow going at first when Scorbunny becomes overly excited, causing Pokémon after Pokémon to flee the commotion. Goh’s luck changes when he focuses on Bug-type Pokémon that live in Kanto, and he catches a Caterpie, Metapod, and Venomoth, followed by a Paras, Parasect, and Butterfree. After several more catches, he has just two Bug-type Pokémon to go: Venonat and Scyther. Goh and Scorbunny battle it out with both, and they succeed! Along with Ash and Pikachu, they return to the Cerise Laboratory, where all of Goh’s new Pokémon settle right in!
Ash and Goh are off to the Hoenn region to compete in the Battle Frontier Flute Cup, and when they arrive, Goh catches a Taillow! They soon meet Hodge, an imposing Trainer who’s confident he’ll win the competition—and sure enough, his Mightyena quickly defeats Goh’s Scyther and Scorbunny. But it’s a different story in the final round, when Ash and Mimey face off against Hodge and his Hariyama. Mimey’s calm battling style results in a victory, but when it declines to battle Mightyena, Ash sends in Pikachu—who uses a unique strategy to land the final blow and clinch the grand prize for Ash!
Ash and Goh are checking out some Tentacool when a Pokémon races toward them from across the sea—it’s an exhausted, ravenous Piplup! They learn that its Trainer, Lauren, has been searching for it after it swam away from her in the Sinnoh region. It turns out the proud Piplup is engaged in a fierce rivalry with Lauren’s other Pokémon, a Croagunk who loves being spoiled. Back in Sinnoh, Piplup challenges Croagunk to a Pokémon Iceberg Race, but Team Rocket throws the event into chaos! When Lauren finds herself in danger, the two Pokémon set aside their differences to save their Trainer—and they become good friends as a result!
Ash and Goh head to Ecruteak City in Johto to investigate rumors of a Ho-Oh sighting, and when they arrive, they see something that looks like Ho-Oh flying in the sky! But it’s actually an imitation created by a boy named Chad, whose grandfather Jaye has been unsuccessfully searching for the Legendary Pokémon for years. Jaye has become convinced that Ho-Oh isn’t real, but Ash knows otherwise. Our heroes accompany Chad and Jaye to the top of Bell Tower, where they call out for Ho-Oh. Nothing happens, but just as Ash, Goh, and Chad start to leave, Jaye takes one last look toward the sky…and finally sees Ho-Oh for himself!
After Professor Cerise tells Ash and Goh about a rumor of an island inhabited by Dragonite, our heroes set out to find it. But they get caught in a storm, only to be rescued by a group of Dragonite who take them straight to Dragonite Island! While exploring, they come across a Dragonair who’s having trouble learning how to fly. Determined to help, Ash does some training with Dragonair, and soon it’s flying high. When Team Rocket attacks, it springs into action, evolving into Dragonite to rescue Ash—and then it happily joins his team!
It’s a typical morning as Professor Cerise and his family prepare for their day, and Yamper is excitedly waiting—it won’t accept food from anyone but Chloe, much to her surprise! Later, at the Cerise Laboratory, an aggressive Gengar is up to no good! As Chloe thinks about her own future, Gengar wreaks havoc in the lab, and no one seems to be able to stop it. When Chloe gets home from school, Gengar turns its attention to her, but Yamper is ready to battle!
The World Coronation Series is here, and Ash and Goh have tickets to watch the final match! In a thrilling battle, Lance of the Kanto Elite Four and his red Gyarados go up against Leon, the undefeated Champion of the Galar region, and his Charizard. The action kicks into high gear when Gyarados becomes Dynamax Gyarados and Charizard becomes Gigantamax Charizard. The two Pokémon trade overwhelming attacks, but Charizard’s G-Max Wildfire stops Gyarados in its tracks, giving Leon yet another victory!
After the World Coronation Series finals and the crowning of Monarch Leon, an aggressive Gigantamax Drednaw threatens the stadium! Our heroes spring into action, and Pikachu suddenly Gigantamaxes, saving the stadium and everyone in it! Leon is impressed, and he’s also amazed that Ash doesn’t have a Dynamax Band. When Ash and Goh finally meet the Monarch, Ash challenges him to a battle…and Leonagrees! He lends Ash a Dynamax Band, and the battle between Pikachu and Charizard begins. With both Pokémon Gigantamaxing, the excitement reaches a new level! Leon wins, but Ash is grateful for the opportunity, and he looks forward to a rematch someday…in an official tournament!
Upon arriving in the Unova region, Ash and Goh hear about a place they just have to explore: Colossus Ruins! First, they must cross the fiery-hot Desert Resort, which seems impossible. But an explorer named Kira shows them how to glide across it, and soon they land at their destination. After a perilous journey through the ruins, they discover the identity of the Colossus: a giant Golurk! Designed to protect an ancient city at all costs, the awakened Golurk attacks with devastating power, but Ash, Goh, and the other explorers take it on in a Raid Battle—and Goh succeeds at catching it!
Snowy weather forces Professor Cerise to temporarily close the lab for repairs, so he asks Ash and Goh to return to their homes in the meantime. Goh is happy to see his grandma again, but his parents are busy working elsewhere, so he decides to go meet up with them. Walking through a park, he encounters a Cubone being teased by a trio of Mankey. The Mankey steal Cubone’s bone, and the poor little Pokémon’s despair prompts Goh to help. Ash eventually arrives, and with some help from their Pokémon, our heroes successfully return the bone. The formerly lonely Cubone is so thankful, it insists on joining Goh’s team!
Gengar has resumed its pranks on the Cerise Laboratory…giving our heroes another opportunity to catch it! But when Ash suddenly comes down with a case of bad luck, Goh says it could be Gengar’s curse. Ash goes for a jog to try to snap out of it, and he runs into Gengar’s former Trainer—prompting Gengar itself to emerge from Ash’s shadow! Gengar is furious because its Trainer abandoned it long ago, but after helping Ash and Pikachu battle Team Rocket, it makes it clear that it now wants to join Ash’steam. Ash is happy to oblige—and Gengar’s anger finally subsides!
When Goh’s Darmanitan challenges Scorbunny to use a Fire-type move, Scorbunny tries as hard as it can but comes up short. It begins training hard so it can use the move Ember, but Goh sees things differently and thinks Scorbunny should focus on the moves it already knows—much to Scorbunny’s sadness and anger. Later, during a run-in with Team Rocket, Goh devises a way for Scorbunny to use its own version of Ember. The move works, and Scorbunny defeats Team Rocket…and also evolves into Raboot! Goh is thrilled, but Raboot seems aloof and walks past its Trainer. What could be wrong?
Ash has entered the World Coronation Series so he can have a rematch with Leon! But first, he needs to challenge a strong Trainer with a high ranking so he can work his way up the competitive ladder. Luckily for him, the acting Vermilion Gym Leader, Visquez, is hoping to challenge someone, too! Each Trainer can use two Pokémon, so Ash chooses Pikachu and Gengar, while Visquez teams up with Raichu and Electrode. Visquez has outstanding battle skills, but as always, Ash is thinking outside the box when it comes to strategies. He wins the match, immediately raising his rank to 3,763! On to the next challenge!
Ash and Goh are excited to watch a movie being made! They meet one of the stars, a Ditto who’s developed a fear of performing. Fleeing the movie set, it ends up with Team Rocket. As a self-proclaimed actress, Jessie finds a soft spot in her heart for Ditto, and together they work on conquering its fears. That’s when Ditto learns how to snap out of it—by giving itself a brisk slap on the face! Back at the movie set, Ditto knows what to do: a quick slap on the face, and it’s a huge success! Meanwhile, Jessie wistfully wishes her new friend luck…from one actor to another.
It’s time for Professor Cerise’s Pokémon Orienteering session! Three teams of young kids will head to Vermilion Port, and the team that arrives first (while spotting the most Pokémon en route) wins! Ash and Goh serve as guides: Goh’s team marvels at how many Pokémon he’s caught, and Ash’s team is delighted when he shows off his battling skills. But when Team Rocket threatens to steal everyone’s Pokémon, Ash and Goh come up with a combination move that sends the villains blasting off again! The kids are full of admiration for Ash and Goh, and the professor declares this Pokémon Orienteering session a rousing success!
As Professor Cerise discusses Pokémon Eggs, Goh reveals he’s never seen one before, so he and Ash set off to find one! Along the way, Ash wins another World Coronation Series battle, but Pikachu needs to visit the Pokémon Center to recover. There, our heroes learn that Nurse Joy is caring for a Pokémon Egg that won’t hatch. Feeling a connection with the Egg, Ash agrees to care for it. It finally hatches into a Riolu, who runs off and ends up in over its head in battles with wild Pokémon. After Ash arrives and helps it battle, a bond forms, and Riolu becomes a part of Ash’s Pokémon family!
Our heroes are in Hoenn to research the migration of Beautifly—the window of time to do this is small, so when a north wind appears, Ash and Goh must be ready! Meanwhile, Raboot has been sneaking away at night, and Goh is frustrated with its attitude. Looking for answers, Goh and Ash follow Raboot…and they discover that it’s been helping the local Pokémon secure their home by way of a dance battle! Goh decides Raboot will be happier without him, but just as he’s about to leave, he panics. Right on time, though, Raboot appears—and although it’s still a bit aloof, Goh is happy to be reunited!
It’s a beautiful day in Cerise Park, and Goh sets out to feed the resident Pokémon. Suddenly, our heroes realize that every tray of Pokémon food is empty, and the Pokémon are still hungry! Accusations fly, and a huge brawl erupts, so Ash and Goh are determined to solve the mystery of the missing food. Even Golurk goes on a rampage, but when Goh’s trio of Cascoon are put in a perilous situation, the park Pokémon join forces to help them evolve! As peace returns to Cerise Park, Ash and Goh finally discover the culprit—cheeky little Skwovet has been hiding all the food for itself!
Team Rocket’s Matori has a big mission coming up, and she does not want any incompetence! The solution? Send Jessie, James, and Meowth (and Wobbuffet) on a vacation! They’re happy for a break, but just as they get settled in, the Twerps appear! Ash and Goh are searching for a giant Pokémon who’s rumored to live in a nearby lake—it turns out to be a Magikarp, who Goh catches with the disguised Team Rocket trio’s help! Then, Matori suddenly attacks, but the trio can’t stand seeing her get the upper hand, so they help Ash and Goh defeat her! Perhaps she’ll think twice before excluding them again?
In a 2 part episode. A giant Magikarp enters the Magikarp jump contest. In the Finals. Magikarp has so much power it launches itself into space and gets disqualified for not returning. In part 2: A Slowking trades its shell for a noodle cup. Which leads to the shell being tossed around between Ash, Goh, Pikachu and Raboot. However, Magikarp comes crashing down and breaks things up.
When an injured Pidove lands outside the Cerise House, Yamper takes it into the house. The whole family falls in love with it, including Chloe, which makes her Yamper jealous.
After winning an official Pokémon World Championship battle, Riolu is feeling like a million bucks. Ash is completely fixated on training it, witch Pikachu looks somewhat discontented with. But when Ash continues paying absolutely no attention to it, Pikachu's patience gets pushed to its limits, and it ends up storming out of the Sakuragi Laboratories. Mr. Mime chases after it in an attempt at holding it back, but Pikachu is set in its way. And the road this duo heads down lead them to... Pallet?
When a nearby Zapdos is charging in a power plant, a power outage occurs in the Cerise Laboratory. Ash wants to battle Zapdos while Goh wants to catch it. Beginning the search for the legendary bird.
Ash and Champion Leon work together to take down rampaging Dynamax Pokémon. Meanwhile, Goh and Sonia explore deeper in to the history of the Galar Region.
Cerise Laboratory begin to detect psychic energy coming from the isolated island of Cello, this energy is said to belong to Mew. Ash and Goh find the legendary Pokémon Mewtwo on the island and our heroes battle Mewtwo