It is almost time for the Sinnoh League competition to start. Knowing that the Sinnoh League is going to be tough with rivals like Barry and Paul competing, Ash decides it is best if he uses Pokémon not only from his Sinnoh journey, but all his other past journeys as well. However, which ones will he choose.

The third round of the Lily of the Valley Conference is about to start. Much to his happiness, Barry's next match will be against Paul, a trainer he looks up too. As the battle begins Paul believes it will be an easy win, but Barry soon proves that he is no pushover. Which trainer will advance to the next round?