The pairs of contestants are introduced; each duo must craft one section of a theme park.

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.

The talented teams are introduced and tasked with building an eye-catching float in the first-ever LEGO Day Parade.

Teams put a stunt "minifigure" to the test in an explosive stunt action scene. The duos must craft an immersive build filled with slime, water, glitter and colored dust to create the ultimate action movie moment.

Structural integrity and beauty come together in the most earth-shattering challenge, as teams build a structure strong enough to withstand an earthquake; which designs perform the best and pass the LEGO "brickter scale" rating system.

This week's challenge is the ultimate test in ingenuity and engineering, as teams will create incredible and wearable hats made entirely of LEGO bricks. Then, teams must model their designs on the LEGO runway, hoping their creations don't collapse into pieces.

As the competition heightens, the remaining contestants are expected to raise the stakes and elevate their work - quite literally - when the teams are tasked with building a beautiful structure in mid-air. Building tables will be removed from the LEGO workspace and duos will be challenged to create a build of their choosing from the foundation of one floating LEGO technic brick. Discover who will take LEGO to new heights.

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The remaining six duos pull all the strings as they build their very own puppets in just under 10 hours; teams collaborate with one another to bring their puppets to life in a puppet show.

The remaining five duos are split into individual challenges; five must build land creatures, while their partners make creations inspired by the sea.

The teams are challenged to take the lamest LEGO neighborhoods and create an action-packed dream house in a home renovation-inspired game.

The teams must build a gravity-defying castle off a giant LEGO cliff.

The three remaining teams have 24 hours to make a construction that has both a day and a night look; the winner is revealed and receives the $100,000 prize.

Fans can catch a special sneak peek of the "Jurassic World Dominion"-themed episode with guest appearances by Chris Pratt and Blue, the Velociraptor.

Teams are introduced and tasked with a space-themed challenge...building personalized spaceships.

The contestants bring dinosaurs and special effects to life in their "Jurassic World: Dominion"-inspired builds; actor Chris Pratt makes a guest appearance.

The builders embrace the Wild West and their technical abilities by creating bull-riding characters.

The builders make their childhood dreams come true by building an imaginative treehouse with their younger selves in mind.

Man's best friend in bricks! Each team races to pick which furry friend they'll recreate.

The teams have just eight hours to create a pirate ship with a creative and cohesive story about its captain and the treasure they're in search of. At the end of the challenge, the builders dock their ships to see how their creations hold up against the rest of the fleet.

The teams put an imaginative and dynamic twist on a summer camp theme.

Each team must transform a putting green into a playable mini golf hole.

The contestants build tall, strong and stylish castles using only regular bricks.

The teams recreate iconic action-packed scenes from the Marvel Cinematic Universe.

Contestants are split into teams, where they compete to build a fast and fashionable race car.

The teams have 10 hours to build a fountain that uses water to create movement within their build.

The three remaining teams get 24 hours to build their best creation possible.

Robin Thicke, Finesse Mitchell, Leslie Jordan and Cheryl Hines build aerodynamic snowmobiles.

The teams must build Santa a new sleigh that looks great and is tough enough to span across two chimneys filled with heavy holiday gifts.

The teams compete in two super-sized brick-building challenges; the winning team wins $20,000 for the charity of its choice.

The daring duos embark on a mission to construct the ultimate motorized party boat that showcases their unique personalities.

The builders must make pet palaces for kittens.

The builders must skillfully construct a scene inspired by their chosen biome while including an explosion and a compelling narrative.

The builders must choose from a selection of sound effects and transform what they think their sound would look like into a LEGO model.

The duos divide into two big teams to construct a mesmerizing show consisting of four breathtaking acts.

The builders ransack a detective's office and leave with an item of their choice that they must replicate into a one-to-one scale model; "LEGO Masters" Season 3 winner, Stacey Roy, must play detective and spot which items are real.

Teams must make luxurious bags that are both functional and runway-worthy by showcasing their creations in a photo shoot; show-stopping bags secure a coveted magazine cover and the fashion fails are at risk of elimination.

Teams use bricks to create an off-road remote-controlled vehicle for an ultimate race.

The pairs are tasked with creating a roller coaster that incorporates a mechanical lift and a drop.

Counting down the top 100 moments from four seasons of "LEGO Masters."

The three remaining teams must create a massive build complete with storytelling and creativity.

Returning fan-favorites contestants David Guedes, Caleb Schilling, Krystle Starr and Randal Wilson, and celebrities NeNe Leaks, Marshawn Lynch, Kelly Osbourne and Rob Riggle pair together to compete in holiday-themed challenges.

Returning fan-favorites contestants David Guedes, Caleb Schilling, Krystle Starr and Randal Wilson, and celebrities NeNe Leaks, Marshawn Lynch, Kelly Osbourne and Rob Riggle pair together to compete in holiday-themed challenges.