Ash and friends meet a girl named Liza, the person who protects the nearby Charicific Valley, a valley where wild Charizard live. Everyone goes there and Ash wants his Charizard to train with the others, but after it is easily beaten by another one, it loses its fighting spirit. Now Ash must figure out what is the best thing to do for Charizard.

During a tough Pokemon Battle, Ash tries to call back Chikorita in order to use Pikachu, but Chikorita refuses to go back. Ash continues to try, but eventually the boy has to leave. At the Pokemon Center, Professor Oak and Nurse Joy tell Ash that Chikorita is probably jealous of Pikachu. That night Chikorita sneaks out of the Pokemon Center and Pikachu follows, but what will happen to the two?