
The game begins with a peculiar talking Pikachu, who claims to be a great detective. One day, Pikachu encounters a boy named Tim Goodman, who is able to understand what he is saying. They are immediately put to the test with retrieving a stolen necklace from thieving Aipom. Afterwards, they head to Baker Detective Agency and meet Mike Baker and secretary Amanda Blackstone, both of whom were close to Harry Goodman, Tim's father and Pikachu's owner. Harry had gone missing following a mysterious car crash that happened the same time Pikachu got amnesia. Tim and Pikachu deduce that Harry was last seen trying to investigate Litwick Cave, and arrive just in time to rescue GNN reporter Meiko Okamoto and her assistant Emilia Christie from a rampaging Glalie, who seems to not remember why it was attacking to begin with.