Prologue:
Mewtwo was once angry with the world. He hated humans and wanted to destroy them. Team Rocket had created him to be the ultimate Pokémon. A creature of mass destruction. Mewtwo was betrayed. Mewtwo then escaped from Team Rocket captivity.
Mewtwo created an island to dwell upon. He lured great Trainers there one day. Mewtwo created many clones of the Pokémon that they brought. He pitted them against their real forms. The clones were obviously superior.
Eventually Mew showed up and Mewtwo tried to destroy him. He couldn't destroy Mew.
There was eventually an incident. A Trainer named Ash was killed in the crossfire. The tears of the remorseful Pokémon brought him back to life.
Mew helped soften Mewtwo's heart. Mewtwo and Mew lead all the clones to an island where they could learn to live in harmony. That is where Mewtwo is residing now.
