After first saving the Mushroom Kingdom and then different worlds across the Galaxy from Bowser's wrath, Mario suddenly feels like he needs a break. Luigi and Princess Peach acknowledges him to take a vacation since they believe he deserves it, and Peach actually asks him if she can come with him. Mario and Peach found information about a tropical island called Isle Delfino, and decided that's where their going and Mario entrusts his brother to take over the Mushroom Kingdom with Toad and Yoshi while he and Peach are gone. The minute Mario and Princess Peach arrived for their vacation, trouble suddenly occurs.
