While working underground to fix a water main, Brooklyn plumbers—and brothers—Mario and Luigi are transported down a mysterious pipe and wander into a magical new world. But when the brothers are separated, Mario embarks on an epic quest to find Luigi.

For one month every year, five highly competitive friends hit the ground running in a no-holds-barred game of tag they’ve been playing since the first grade. This year, the game coincides with the wedding of their only undefeated player, which should finally make him an easy target. But he knows they’re coming...and he’s ready.

Following the events of the first movie, Surly and his friends must stop Oakton City's Mayor from destroying their home to make way for a dysfunctional amusement park.