Pocket Monsters: Mewtwo! Ware wa Koko ni Ari
The Team Rocket leader, Giovanni, has found Mewtwo in a remote area of the Johto region. As Giovanni tries to re-capture Mewtwo, Ash and his friends are kidnapped by Domino, a new Team Rocket member, while trying to rescue Pikachu from Jessie and James. The Clone Pokemon are also captured and are then used as bait for Mewtwo. The situation then becomes a battle between the wills of Mewtwo and Giovanni; and Mewtwo also tries to discover if it and the clones have a purpose in life, even though they are products of science.
(Source: Anime News Network)
Pokémon: Mewtwo Returns has 1 episode.
As of now, Pokémon: Mewtwo Returns has finished.
Pokémon: Mewtwo Returns started airing on December 30, 2000.
Pokémon: Mewtwo Returns is a special with episodes around 75 minutes long, originally from Japan.
Pokémon: Mewtwo Returns premiered in Winter 2001.