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 moment of truth has arrived, as our heroes and their friends must face the final challenge that will decide the fate of the world!

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!

As the Kalos League semifinal round continues between Ash and Sawyer, the audience witnesses a rivalry few have ever experienced!

It's time for the Kalos League finals and it's Ash versus Alain in their much anticipated battle!

Our heroes are going their separate ways, and it's time for goodbyes, fond memories, and eyes to the future!

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!

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!

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.

The semifinals of the Kalos League have arrived, bringing two intense battles!

The fate of Chespie and the world rests in the hands of an extraordinarily powerful group of friends and allies!

With a contentious back-and-forth battle with Bea, Ash brings out Sirfetch'd, Pikachu and Lucario to bolster his attacks and defensive strength.

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.

Ash and Greninja have displayed some amazing and mysterious traits in battle, and Clemont wants to find out why!

Ash is back at the Snowbelle City Gym for a rematch, but will Gym Leader Wulfric feel the heat?

As Ash and the gang are separated each one is trying to help others in different ways.

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.

Our friends, lost, discover an injured Charmander. Pikachu talks to it and learns that it's been waiting a long time for its trainer to return.

The kids are at Terracotta Town, where May and Max will catch a boat back home to Hoenn. The town happens to be hosting a festival, complete with its very own Pokémon Contest. Ash figures it's unofficial, so he wants to compete. Both Ash and May sign up, with Ash using Pikachu and Sceptile, and May using her Eevee and Combusken. Nurse Joy is the MC, doing her best Lillian impersonation. May goes first, impressing the crowd by having Eevee use Dig and Shadow Ball to create a fireworks display. Ash is equally impressive when Pikachu uses Quick Attack, Thunderbolt, and Iron Tail to create electric rings that buzz around the arena. At the end of the first round, May is in first place with Ash a close second, both of them advancing to the finals against each other.