The Tower of Terror

S1, E23: Ash realizes that he must catch a Ghost-type Pokémon to defeat Saffron Gym Leader Sabrina’s awesome Psychic-type Pokémon. In search of a Ghost type, he heads for Pokémon Tower in Lavender Town, where they are said to dwell. Jessie, James, and Meowth from Team Rocket are already at the tower, but as they lie in wait for our heroes, they are attacked by the ghoulish Gastly, Haunter, and Gengar. While trying to defeat the Ghost-type Pokémon, Ash learns a lesson or two about the mystical spirit world. Can Ash catch one of these frightful Pokémon—and if so, will it be enough to defeat Sabrina?