Mewtwo doesn't want to destroy the world because he's evil, he wants to because he's lonely, and the movie knows the difference. A 90-minute children's film about a cloned god-creature learning that being the strongest thing alive means nothing if no one chose you hits different when you're actually paying attention. By the end, Ash's sacrifice means something because the movie spent 80 minutes proving that compassion is the only power that matters.
A legendary Pokémon born from human ambition awakens with rage in its heart. Mewtwo, artificially created from Mew's genetic code, discovers it exists only as a tool for others' gain. Rejecting its creators and their master Giovanni, the artificially-engineered creature seeks a new purpose: vengeance against humanity itself. Mewtwo sends invitations to elite trainers across the world, including a young determined trainer named Ash. What seems like an invitation to battle becomes a trap. Mewtwo reveals its true goal: to clone the trainers' Pokémon and create an army of perfect duplicates, all serving its dark vision for the world. Ash and his companions find themselves caught between a battle they never wanted to fight and a question they can't ignore: does a being created without choice deserve sympathy, or does its pursuit of destruction demand a response? With his Pokémon and new allies at his side, Ash faces an opponent that challenges everything he believes about the bond between trainer and Pokémon.