As part of an extra curricular class, the group travel to Kanto. When there, Ash meets up with his old friends Brock and Misty. Then, when takingthem through Oak's Laboratory to meet his old Pokémon, the group gets losts. To make matters worse, Team Rocket have also returned to Kanto briefly and have their eyes set on the Pokémon in the laboratory once again. Will they succeed?