Ash & Go have head to Littleroot Town in Hoenn to investigate the Beautifly migration, which only happens once a year. During this, Go wants to get another Wurmple and calls to Raboot, but Raboot is disinterested. Later, Raboot sneaks out of the Pokémon Center. Where is it going?

Team Rocket receives orders from Giovanni to take a vacation, which apparently applies to all Team Rocket members, but while they're taking things easy in the Sinnoh Region Resort Area Matori and her Elite Team swoop in and start snatching up Pokémon! Now Jessie, James, Meowth and Wobbuffet have to work with Ash and Go, who are also in Sinnoh, to stop Matori without the two trainers finding out who they are and without headquarters finding out that they are violating their orders.