In this film, we meet the new Pokémon, Celebi, who has the power to travel through time. Vicious, the future descendant of James and Jessie of Team Rocket, travels back in time to wreak havoc, and it's up to young Ash, Pikachu and friends to stop him. Along the way, Ash continues to mature into the unstoppable Pokémon trainer he will become in the future.

Ash, Pikachu and the rest of the Pokemon gang try and stop a pair of thieves hiding out in the canals and alleyways of Alto Mare, the water capital of the world. Joining the adventure are two new Pokémons, a brother/sister pair named Latias and Latios who are protecting the Droplet of the Heart - a valuable treasure.

In this film, we meet the new Pok