It's been five years since everything was awesome and the citizens are facing a huge new threat: LEGO DUPLO® invaders from outer space, wrecking everything faster than they can rebuild.

A cooler-than-ever Bruce Wayne must deal with the usual suspects as they plan to rule Gotham City, while discovering that he has accidentally adopted a teenage orphan who wishes to become his sidekick.

An ordinary Lego mini-figure, mistakenly thought to be the extraordinary MasterBuilder, is recruited to join a quest to stop an evil Lego tyrant from conquering the universe.