Chimchar is ready to join an exploration team, and with his newly human turned pokémon friend Piplup, he is ready for any challenge that may arise, inclduing Grovyle's plot to steal a Time Gear.

Near Lake Valor, Ash & co. meet up with their old friend May, who has come to Sinnoh to participate in Wallace's special Wallace Cup for a Ribbon that can be used anywhere. Before the cup starts, the gang go to a restaurant at the Grand Lake Hotel where they can get a full course meal for free. The catch however, is that the winners of a tag battle will win the meal. Ash & Brock team up while May & Dawn also pair up for the challenges. Who will win?