Pokémon Detective Pikachu Movie (2019) - Clip - Pikachu and Mewtwo’s Big Fight - Tim and Pikachu must fight for their lives against several different Pokémon, including one of the most powerful ones yet, Mewtwo. br br Plot synopsis: In a world where people collect Pokémon to do battle, a boy comes across an intelligent talking Pikachu who seeks to be a detective.