SM053

(Japanese: 急げ！ルザミーネ救出大作戦！！ Hurry! The Great Lusamine Rescue Operation!!) is the 53rd episode of the, and the 992nd episode of the Pokémon anime. It first aired in Japan on December 7, 2017.

Plot

 * and find Lusamine in Ultra Deep Sea, only to discover she has fused with.
 * 's is revealed to know.
 * Ash and his friends battle Lusamine.
 * Kiawe splits from the group to battle Lusamine's and wins.
 * ,, and , along with and , split from the group to battle Lusamine's , , and.
 * Gladion splits from the group to battle Lusamine's.
 * , along with, split from the group to battle Lusamine's and free it from Nihilego's control.

Humans

 * Jessie
 * James
 * Professor Kukui
 * Lusamine
 * Gladion
 * Professor Burnet
 * Jessie
 * James
 * Professor Kukui
 * Lusamine
 * Gladion
 * Professor Burnet

Pokémon
Who's That Pokémon?: (Japan)
 * (Alola Form)
 * ('s; Alola Form; Snowy)
 * (Professor Kukui's; Poké Problem segment)
 * (Lusamine's; flashback)
 * (Lusamine's; flashback)
 * (Lusamine's)
 * (Lusamine's; debut)
 * (Lusamine's)
 * (Lusamine's)
 * (Lusamine's)
 * (Lusamine's)
 * (Gladion's)
 * (Gladion's; )
 * (Gladion's)
 * (Nebby)
 * (multiple)
 * (fused with Lusamine)
 * (Lusamine's)
 * (Lusamine's; debut)
 * (Lusamine's)
 * (Lusamine's)
 * (Lusamine's)
 * (Lusamine's)
 * (Gladion's)
 * (Gladion's; )
 * (Gladion's)
 * (Nebby)
 * (multiple)
 * (fused with Lusamine)
 * (fused with Lusamine)