Ten pairs of contestants are introduced and must craft a section of a theme park.

Each remaining duo creates a space-themed build. The creations are then smashed and the carnage is viewed in slow motion.

Each team is given one half of an everyday object and must build the missing half.

Phil Lord and Christopher Miller, the writers and directors behind 'The LEGO Movie', give the contestants a movie-themed challenge.

The duos each build a city block that is then assembled into a huge city at the end.

The remaining teams build a car for a downhill race and then build a bridge for a weight-bearing stress test.

The contestants showcase their creativity by interpreting a story that is read aloud from a book. Nicole Byer joins the duos on set as she helps the contestants through a twist.

Contestants create evil lairs and must incorporate a hand-held 'swooshable vehicle'. Terry Crews is a guest.

The droids from Star Wars challenge the contestants to build their own droids and to replicate iconic scenes from the franchise.

The three remaining duos create their most epic master builds yet in their final competition.