BW098: Meloetta and the Undersea Temple!

Episode Plot
Something big is going on in Unova and it involves Team Rocket. They capture Meloetta for an evil plot to take over Unova and the whole world. During the battle to save it, Ash (finally) comes face to face with Giovanni, the leader of Team Rocket and bears witness to Meloetta's true power. Can Ash's friends be able to save them in time?

Debuts
Pokémon
 * Kami Trio (Therian Formes)

Trivia

 * Ash finally confronts Giovanni after more than 20 years and 15 seasons.