Ash Ketchum arrives in the Sinnoh region chasing its eight Gym badges and a shot at the Sinnoh League. He travels with the returning Brock and a new companion, Dawn, an aspiring Pokémon Coordinator competing in Contests of her own. Along the way they keep crossing the schemes of Team Galactic and the Pokémon Hunter J. This long-running stretch covers the Diamond and Pearl seasons of the Pokémon anime, built around the Sinnoh games.