As Ash continues his training, he, May, Max and Brock encounter Prof. Birch. Meanwhile, a boy's Nincada was captured by Team Rocket and it digs a hole to a temple. There they encounter the commanders of the teams they encountered before: Team Magma's Harland and Team Aqua's Isabel. How will this clash of Aqua vs. Magma go down, and can Ash and co. help the boy save his Nincada?

Corphish's bad attitude is showing no signs of improving so Ash plans to humble it a bit by putting a good scare into it deep inside an abandoned mine. Later on, Team Rocket discovers an abandoned gold mine and goes in. Can Ash and co. brave this mine in order to be well prepared for his rematch with Brawly?