When a supernatural entity starts stealing heart-shaped objects from houses in a small town, Ash, Brock and Misty team up to solve the mystery.

Team Rocket goes on a revenge mission to capture more Pokémon for their boss. The first step? Sending a Mime Jr. to gain Pikachu's trust.

Latias takes Ash on a journey to figure out what happened to Latios. But rescuing the legendary Pokémon becomes a bigger battle than they bargained for.

As the group splits up, Ash and Pikachu return to Pallet Town, where they get some much-needed relaxation — before Team Rocket shows up.

The mysterious appearance of a legendary Eternatus above Wyndon Stadium grants Ash and Leon a bonus round, where it comes down to partner versus partner.

Get your tissues ready, because this episode of Pokémon the Series: Sun & Moon—Ultra Legends is a real tearjerker. On Poni Island, Hapu tells Ash and friends about a strange mist created by Tapu Fini. When people and Pokémon venture into the fog, they can be temporarily reunited with loved ones who have passed on. Ash, Mallow, and Hapu herself all encounter the mist, and when Lillie and Gladion emerge from it, a shocking revelation sets the stage for an exciting mystery!

The Cerulean Gym is the setting for old and new friends, battling old and new skills!

As the Alola Pokémon League races toward the finish line, Gladion and Zoroark unleash the Z-Move Never-Ending Nightmare against Pikachu. But Pikachu stops in its tracks to meet the threat head-on with Breakneck Blitz: a strategy that’s pure Ash! The clash of Z-Moves leaves both Pokémon unable to battle, and Ash and Gladion both respond by sending out their Lycanroc for the final stretch of the match. The two Lycanroc battle to new levels of intensity, ending with a Counter-versus-Counter showdown—and a momentous, hard-earned win for Ash! At long last, our hero is crowned the Champion of the first-ever Alola Pokémon League!

In a frozen land, Ash, Goh and Chloe search for a rare Pokémon while Lillie and her family hope to reunite with their missing father.

The battle rages on, but Ash is down to his last Pokémon: Lucario. Can the power of their bond see them through to a victory over the Sinnoh champion?

The fierce battle to determine who the strongest trainer is continues. Will Ash manage to see himself through to the ultimate victory?

Ash and Pikachu run into Litten again, but this time something's very wrong with its friend the old Stoutland. Ash carries Stoutland to the Pokémon Center, where Ash, Pikachu, and Rotom-Dex learn that Stoutland is dying. Litten and Stoutland escape from the Pokémon Center and return to the riverside, where Stoutland passes away in the night. After realizing what has happened, Litten is heart-broken and refuses to be comforted by anyone. After Litten finally comes to terms with the loss of its friend, Ash asks Litten to join him. Litten decides to test him by battling against Pikachu. When the battle ends in a draw, Litten chooses to become one of Ash's Pokémon. Team Rocket's Meowth, who for reasons of his own has been secretly watching everything, seems pleased by the outcome.

A celebratory Pokémon School class trip turns out to be a reunion no one will ever forget!

With each competitor down to their final five Pokémon, the battle wages. Ash fights to get an advantage over Leon, who effortlessly sets the pace.

As the epic battle continues, underdog Ash struggles to keep up with champion Cynthia's aggressive strategy — but he won't go down without a fight.

While Goh answers an emergency call from Project Mew, Ash heads into the finals of the Masters Eight Tournament, where Leon requests a full power battle.

As if a gym battle with a Dragonite isn't challenge enough for one day, Team Rocket secretly surveys the weakened state of Ash's battling Pokémon and plots to turn the situation to their advantage.

An epic battle with a legendary Pokémon reignites the fire in both Ash and Goh's hearts. But before they set out on new journeys, they must say goodbye.

Ash and Paul continue their 6-on-6 battle. With both teams fighting extremely hard it could be anyone's match, so Paul calls out his newly evolved Magmortar, hoping it will secure him victory.

With Goodra's beloved wetlands in imminent danger, our heroes are faced with a must-win situation for the sake of the many Pokémon who live there!

The time for Ash's Anistar City Gym battle has arrived, but in this case, time has some unexpected meanings!

Professor Oak has finished his research on the mysterious new Pokémon Ash reported and names the new Pokémon Meltan, a Steel-type. One of the Meltan has grown attached to Ash's Rowlet and stows away in Ash's backpack with Rowlet to join them all at the Pokémon School, but after an incident with a Murkrow, it loses its Hex-Nut. Rowlet tries to replace it but nothing he tries seems to work, so he and Meltan head out to find its Hex-Nut. However, they run into Team Rocket, who have found Meltan's Hex-Nut and are still after all the Meltan. Will Rowlet be able to protect Meltan?

Ash and Goh head to the Kalos region, where Goh wants to catch Kalos Pokémon and Ash sets his sights on a World Coronation Series Battle Festival.

To prepare for the Masters Eight Tournament, Ash reunites with his many Pokémon partners to battle an old rival and get as strong as possible.

On Faraway Island, the Chasers make a startling discovery and find themselves transported to a mysterious realm, where Goh connects with an old friend.