The story begins with a shadowed Giovanni challenging all Pokémon Trainers to win the one-of-a-kind Diamond Badge by defeating him and his Pokémon in a battle. Ash declines to joining his mother Delia, and Professor Oak to a lecture on sleep disorders among Snorlax, because he has decided to accept the mysterious Gym Leader's challenge. As he prepares for the journey, Misty chastises him for not taking her to the movies for her birthday as promised three weeks ago. Ash promises to make it up to her somehow, but adds that Pokémon are his friends too ("You and Me and Pokémon"). Together with Brock, Ash and Misty head off for the Gym using a map downloaded from the Diamond Badge website.