The original Pokémon Red and Green video games were released in Japan, starting the Pokémon franchise.
The Pokémon animated TV series premiered in Japan, increasing the franchise's popularity.
Pokémon: The First Movie premiered in Japan, introducing Mewtwo and expanding the Pokémon story to the big screen.
The Pokémon: The First Movie was released in the United States, marking the franchise's expansion into the western movie market.
The Pokémon Trading Card Game was officially launched in the United States, further growing the franchise.
Scientists in the Pokémon world clone Mew to create Mewtwo as an enhanced and more powerful Pokémon.
Mewtwo gains consciousness and comprehends its origin as a cloned Pokémon, leading to existential conflict.
Mewtwo rebels against its creators, destroys the laboratory, and escapes to a remote island to live in isolation.
Mewtwo sends invitations to powerful Pokémon trainers to participate in a battle tournament on New Island.
Ash Ketchum and other Pokémon trainers arrive at New Island to participate in the mysterious tournament.
Mewtwo captures and battles various Pokémon, displaying his formidable power and intellect.
During one battle, Ash attempts to protect Pikachu from Mewtwo's attacks, getting caught in the fight.
Mewtwo creates clones of Pokémon and reveals his desire to prove cloned Pokémon's superiority over originals.
Mew challenges Mewtwo to a psychic battle to determine the meaning of Pokémon life and strength.
Ash sacrifices himself to protect his Pokémon from Mewtwo’s attack, showing the power of friendship.
Mewtwo, moved by Ash’s sacrifice, decides to stop his plan for Pokémon domination and understands kindness.
Mewtwo releases the clones, destroying the lab machinery and letting the cloned Pokémon live free.
