Pokémon the Movie: Genesect and the Legend Awakened

The Genesect Army comes to a mountainous, snowy area that used to be their home. However, three hundred million years have passed, and it is no longer habitable. Suddenly, an avalanche occurs, but Mewtwo arrives and manages to save four of the five Genesect. Mewtwo peers into the mind of the Douse Drive Genesect and learns what they are looking for: their home. The Red Genesect, whom Mewtwo was unable to save, then appears and attacks Mewtwo, and the Genesect Army flies off. Later, they see the skyline of a large city and mistake it for their home, leading them to travel there.