All your Pokemon characters are back, and are joined for the first time b the legendary Pokemon Celebi and Suicune, in this latest exciting Pokemon adventure! In order to escape a greedy Pokemon hunter, Celebi must use the last of its energy to travel through time to the present day. Celebi breings along Sammy, a boy who had been trying to protect it. Along with Ash, Pikachu, and the rest of the gang. Sammy and Celebi encounter an enemy far more advanced than the hunter left behing in the past. This new enemy possesses a Pokeball called a aDark Ball, which transforms the Pokemon it captures into evil and far stronger creatures. When Celebi is captured, the fate of the entire forest is threatened.