Pokémon S08E03 - The Evolutionary War

The heroes come to the A-B-C Islands, where they meet up with Professor Birch. The Professor wants to study more about Clamperl's evolutions, Huntail and Gorebyss. They also accompany two children, who are angry at each other, for they want to evolve Clamperl that goes against their principles. Birch, however, finds something that can settle the trouble, and give Team Rocket a new opportunity at stealing Pokémon.