BW125: Farewell, Unova! Setting Sail for New Adventures!

Synopsis
After defeating Team Plasma, Ash decides to return to Kanto and Iris and Cilan decide to come with him, so they can still pursue their goals to become Dragon Master and Pokemon Connoisseur, respectively. Professor Juniper offers them a cruise around the Decolora Islands. However, Ash and company get tricked by Team Rocket to their abandoned ship, so they can lock them up and steal their Pokémon...

Trivia

 * James wears his old man disguise from JE135: Beauty is Skin Deep.
 * After BW115 they used their jetpacks to escape from being blasted off, they blasted off in this episode.
 * This is the second episode Ash and co. were fooled by Team Rocket in an abandoned ship. The first was back in IL015: Battle Aboard the St. Anne.