A Brooklyn plumber named Mario travels through the Mushroom Kingdom with a princess named Peach and an anthropomorphic mushroom named Toad to find Mario's brother, Luigi, and to save the world from a ruthless fire-breathing Koopa named Bowser.

The Mallard family is in a bit of a rut. While dad Mack is content to keep his family safe paddling around their New England Pond forever, mom Pam is eager to shake things up and show their kids teen son Dax and duckling daughter Gwen the whole wide world. After a migrating duck family alights on their pond with thrilling tales of far-flung places, Pam persuades Mack to embark on a family trip, via New York City, to tropical Jamaica.