Whitney takes our heroes to her uncle's Miltank farm in the outskirts of Goldenrod City. Here they sample the finest in Miltank dairy products and learn how to groom and care for these Pokemon. Ash realizes this is a great opportunity to study Miltank first hand and hopes it will help him against Whitney's Miltank in their next battle. After learning about Miltank and coming out victorious in a battle against Team Rocket, Ash thinks he has found out the perfect way to combat Miltank and challenges Whitney to a rematch.

Ash and friends arrive at the National Park where the Bug Catching Contest is about to start. They reunite with Casey who is also competing. As the contest starts, Ash and Casey decide to see who can get the best pokemon. Meanwhile, when Team Rocket is denied entry into the competition, they steal the costume of one of the employees and sneak into the park. When their plan fails, they resort to their old ways and prepare a trap to catch Pikachu.