Two plumbers from Brooklyn try to make names for themselves and when they attempt to stop flooding coming from an unknown source, they accidentally discover a pipe that leads to an alternate dimension, and the brothers get separated, Luigi ending up in the dark lands and Mario in the Mushroom Kingdom. Mario has to partner with the Princess of the Mushroom Kingdom, Peach, to help convince the King Army to help keep their land out of the clutches of Bowser, The Koopa King.
