Pokémon (1997)

S7E49 A Scare to Remember!

Following another clash with Team Rocket, Ash finds himself without Pikachu. Meanwhile, Pikachu has sustained a head injury and is suffering from amnesia, which leads Meowth to discover him. Seizing the chance, Meowth convinces Pikachu that he is part of Team Rocket. When Ash finally reunites with Pikachu, he is shocked to see his friend reject him. Despite the heartbreak, Ash remains determined to help Pikachu recover his memories and restore their bond.