With Team Plasma defeated once and for all, Ash decides it is time to go back to Kanto. Iris and Dent decide to go with him to further their skills, and Professor Juniper charters all of them a cruise through the Dekorora Islands on a boat with a mysterious crew. Once settled in their cabins, however, Ash finds that they are locked in and their Pokémon are not with them.
The cruise makes a stop on Honey Island, known for its colonies of the Honeycomb Pokémon Honeymitsu, Pupa Pokémon Cocoon, Stinger Pokémon Spear, and its honey-flavored cuisine.
As Ash and his friends prepare for the upcoming Marine Cup Tournament on board their new cruise ship, the group learns that Ripple, a jewel collector, will display her collection after the tournament, but she discovers that her rare Eye of Lepardas has been stolen. Ripple suspects Shoal, a mysterious man who has been asking to buy the Eye of Lepardas from her, even though it was watched over by her Miruhog all night. Dent takes on his detective role once more to discover the thief of the Eye of Lepardas.
On Scalchop Island, Ash's Oshawott goes up against the Dewott named Caesar to see who will win the battle at the Scalchop King Competition.
On the way to Mahora Island, the gang's boat passes through fog and they believe they see a familiar shape in it. After avoiding a giant Heatmor when Pikachu's attacks do not work against it, Axew gets poisoned by a Foongus's Mushroom Spore attack, forcing the gang to take him to an old Pokémon Center which they soon discover is operating illegally.
Ash, Iris, and Cilan catch up with Professor Oak who has come to one of the Decolore Islands to investigate the Plasma Pokémon Rotom and its Forme Change capabilities. However, the Rotom native to the island are more interested in Pikachu, Emolga, and Stunfisk.
When Team Rocket tries to ransack the group's cruise ship's food store, they are thwarted by a group of self-styled pirate Pokémon group made up of a Croconaw, an Octillery, an Azumarill, and a Ducklett, leaving Ash to try to get the food back.
On Wayfarer Island, Ash and his friends see the native Metapod and Butterfree, and when they find a Caterpie who has not yet evolved, Ash takes it upon himself to help the very lazy Pokémon join the rest of its friends, remembering the times he had raising his own Butterfree years ago.
On Capacia Island, after a Dunsparce Ash fails to capture and hurts Axew, Iris gets so mad at him that she says she will no longer be Ash's friend and leaves.
Ash, Iris, and Cilan take a break on Capacia Island only to discover they have arrived on the one week once every 1000 years when Jirachi awakens and grants a wish. Gemma, a young girl who lives on the island, wants to ask Jirachi to bring prosperity back to the island, but Team Rocket has other plans.
Ash must find a way to stop Beheeyem from taking over a town on Capacia Island after the townspeople, Iris, Cilan, and even Pikachu are placed under the strange Pokémons' control.
While on Harvest Island, Ash and his friends meet the Pokémon Reporter Alexa, who has come all the way from the Kalos Region with her Gogoat and Helioptile. She has come to investigate Harvest Island's fruit harvest festival, which the others realize has a Pokémon Sumo tournament. Ash, Iris, and Cilan enter Pignite, Pansage, and Dragonite in the tournament to win the grand prize Focus Band.
Alexa tells Ash, Iris, and Cilan about Yashi Island, a desert island where a pirate ship crashed years ago, and the ship's treasure has never been found. The group decides to investigate, and Team Rocket follows to get the treasure for themselves.
On Cave Island, Ash and his friends meet up with Clair, Gym Leader of Johto's Blackthorn City, who has come to the island to capture a different-colored Druddigon, but her Dragonite left without her. When they find her Dragonite, Iris's Dragonite takes an instant dislike to it and the two fight, hampering Clair's plans to find the different-colored Druddigon on the other side of the island from the port.
The appearance of Woodate Comet approaches, so Ash, Iris, Cilan, and Alexa go stake out the ruins where the legendary hero it is named after first spotted it. However, they must deal with several Ghost Pokémon and Team Rocket who are once again trying to capture Pikachu.
On another island, Ash, Iris, Cilan, and Alexa meet a boy named Tony who touches Alexa's Gogoat's horns, causing it to temporarily bond with him. They all help Tony meet his father on the other side of the island.
After being scolded by Iris, an ambush by Team Rocket starts to make Emolga wish she did not have to be with such strict trainers and fights on Team Rocket's side.
Chili and Cress meet up with Cilan on Paladin Island as they have both been beaten by a challenger at the Striaton Gym named Morana who exclusively uses Ice-type Pokémon such as Mamoswine and Glalie. It is up to Cilan and Pansage to face off against Morana and her Abomasnow for the honor of the Striaton City Gym.
The group finally reaches the waters off of Kanto, just as Team Rocket once again tries to do their best to take Ash's Pikachu.
With Iris and Cilan heading off on their own adventures in Johto, Ash is restless and still wishes to become a Pokémon Master. To that end, Alexa suggests that he travel with her back to her home in the Kalos region just as Team Rocket hatches another plan to steal Pikachu.
Loading seasons…
Loading recommendations…