Each duo must create a space-themed build; the creations are smashed in slow motion.

Each team builds the other half of an everyday object that has been sliced in two.

Phil Lord and Christopher Miller task the contestants with a movie-themed challenge.

The contests each build a city block that is brought together as a huge city at the end.

The remaining teams must build a car and a strong bridge; the creations are stress tested.

The contestants must interpret a story that is read aloud from a book selected for this competition.

Contestants create evil lairs and fly vehicles through their Lego worlds; actor Terry Crews.

Contestants build droids and replicate iconic scenes inspired by the "Star Wars" franchise.

The two remaining duos go head-to-head as they create their most epic master builds yet.