While exploring Dewford Island, Ash and friends notice a large cave and Max states that it's Granite Cave. They all enter and soon they fall into a pit trap courtesy of Team Rocket. Unfortunately they fall in as well and the two groups are mixed and separated. This time around, there are three groups: Males being Ash, Brock and James. Females being May and Jessie and the rest being Max, Pikachu and Meowth. Can these groups be brought back to order and who is in Granite Cave along with our heroes and villains?

With a new Pokémon in tow, Ash continues his training to prepare for his rematch with Brawly. However, though caught, Corphish is still a ruffian as it introduced itself by whacking all the other Pokémon on the head. Can it ever be more social with other Pokémon, and why is Jessie's Silcoon purple right after it evolved?