The Mushroom Kingdom has remained a peaceful place, thanks to the brave deeds of Mario and Luigi. However, the Mushroom Kingdom forms an entrance to the Mushroom World, a place where all is not well. Bowser sent his seven children to make mischief in this normally peaceful land. As their first order of business, they stole the royal magic wands from each country in the Mushroom World and used them to turn the kings into animals. Mario and Luigi must recover the royal magic wands from Bowser's seven kids to return the kings to their true forms. As Mario and Luigi set off on their journey deep into the Mushroom World, Princess Peach and Toad have but one thing to say: “Good-bye, and good luck!”