Castles and Cannonballs: The builders have eight hours to assemble a castle, which is then plonked at the end of a bowling lane and smashed by a bowling ball. (S3 Ep2) [AD,S,SL]
Finale: It's the grand finale, and the three remaining teams have 28 hours to create a build of their choice. Who'll win the Lego Masters title? (S2 Ep11) [AD,S,SL]
Smash and Grab/Day and Night: The teams have just 12 hours to build a city block that tells a story during both day and night in this double header challenge. (S2 Ep10) [AD,S,SL]
Underwater World: Four huge water tanks are revealed, and the teams have 12 hours to build a model that will be submerged underwater. (S2 Ep9) [AD,S,SL]
3D Art: Five teams build a piece of 3D art inside a picture frame. They'll be judged on their technical skills, artistic composition and how 3D their build is. (S2 Ep6) [AD,S,SL]
Tall Tower and One Hanging Brick: The teams must build the tallest tower they can, followed by a challenge with a Lego brick suspended on a wire. (S2 Ep4) [AD,S,W]
Fairy Tales: In the first elimination, the teams have 12 hours to recreate classic fairy tale scenes, which will be judged on aesthetics and technical skill. (S2 Ep3) [AD,S]
Hero Shot: The teams must build a movie set and then explode it, so that it looks like the film's hero is walking away from an explosion in extreme slow motion. (S2 Ep2) [AD,S]
A Whole New World: The Australian version of the Lego-building show returns. In the series opener, the builders have 15 hours to create a brand-new world. (S2 Ep1) [AD,S]
Finale: It's the final. The teams have 28 hours to build whatever they want. Whose masterpiece will win them the $100,000 and the Lego Masters title? (S1 Ep9) [AD,S]
Time Train: The teams have to build a time train diorama set across four time periods - Prehistoric, Medieval, The Old West and The Future. (S1 Ep8) [AD,S,W]
Duplicate Classic Movie Scene: The teams have eight hours to replicate the DeLorean from Back to the Future, then have ten hours to recreate a classic movie scene. (S1 Ep7) [AD,S]
Evil Lair: The teams must build an evil lair and a vehicle for a brand new mini-figure super-villain. Can their vehicles pass the 'swooshability' test? (S1 Ep6) [AD,S,W]
Blockbuster: In a space challenge, the teams have to create something out of this world. And they'll be judged on how spectacularly their build explodes in slow motion. (Ep2) [AD,S,W]
Mega City: The Lego blocks head to Australia. In the first challenge, the contestants are given an empty city block and 15 hours to create a section of the city. (S1 Ep1) [AD,S,W]
Brand new series - Grand Finale: The three remaining teams have 28 hours to build anything they want, and will be judged by 200 members of the public. Who'll bag the $100,000? (S4 Ep14) [S]
Brand new series - Grand Finale: The three remaining teams have 28 hours to build anything they want, and will be judged by 200 members of the public. Who'll bag the $100,000? (S4 Ep14) [S]
Brand new series - Sky's the Limit: The teams are given a Lego cloud and can create anything they like on it. One team makes a rainbow castle, another a fisherman catching birds. (S4 Ep13) [S]
Brand new series - Sky's the Limit: The teams are given a Lego cloud and can create anything they like on it. One team makes a rainbow castle, another a fisherman catching birds. (S4 Ep13) [S]
Brand new series - Three Act Story: The teams construct stories on rotating bases that have three different sections, representing the beginning, middle and end of their tales. (S4 Ep12) [S]
Brand new series - Three Act Story: The teams construct stories on rotating bases that have three different sections, representing the beginning, middle and end of their tales. (S4 Ep12) [S]
Brand new series - Window to the Future: The remaining teams must build a vision of the future in 12 hours. One team constructs a zero gravity skatepark, another creates Doomsday. (S4 Ep11) [S]
Brand new series - Window to the Future: The remaining teams must build a vision of the future in 12 hours. One team constructs a zero gravity skatepark, another creates Doomsday. (S4 Ep11) [S]
Brand new series - High Wire and Secret Cities: The teams have to create a build that can drag itself across a high wire, and then build a secret story inside a half-built city. (S4 Ep10) [S]
Brand new series - High Wire and Secret Cities: The teams have to create a build that can drag itself across a high wire, and then build a secret story inside a half-built city. (S4 Ep10) [S]
Brand new series - Blown Away: The teams must create a build that functions from the power of a wind contraption. One pair opt for a wizard; another create a moving caterpillar. (S4 Ep9) [S]
Brand new series - Blown Away: The teams must create a build that functions from the power of a wind contraption. One pair opt for a wizard; another create a moving caterpillar. (S4 Ep9) [S]
Brand new series - Spooky: The remaining teams must create a spooky place in 10 hours, each one on a baseplate that surrounds a scary castle. (S4 Ep8) [S]
Brand new series - Spooky: The remaining teams must create a spooky place in 10 hours, each one on a baseplate that surrounds a scary castle. (S4 Ep8) [S]
Brand new series - Dragon Race and Grandscapes: The teams must build tiny dragons that are small enough to fly on a drone. Whoever wins gets an advantage for the second build. (S4 Ep7) [S]
Brand new series - Dragon Race and Grandscapes: The teams must build tiny dragons that are small enough to fly on a drone. Whoever wins gets an advantage for the second build. (S4 Ep7) [S]
Bridge Too Far: The teams need to create a bridge that can survive two shaking plates. If more than one bridge survives all 12 levels of shaking, the prettiest bridge wins. (S4 Ep6) [S]
Bridge Too Far: The teams need to create a bridge that can survive two shaking plates. If more than one bridge survives all 12 levels of shaking, the prettiest bridge wins. (S4 Ep6) [S]
Brand new series - Cut-Away: The teams have 10 hours to build a model at minifigure scale that's whole on one side but, when it's spun around, reveals a world that's cut in half. (S4 Ep5) [S]
Brand new series - Cut-Away: The teams have 10 hours to build a model at minifigure scale that's whole on one side but, when it's spun around, reveals a world that's cut in half. (S4 Ep5) [S]
Brand new series - Car of the Future: The builders make a futuristic car that balances on a magnetic platform and bring an old object to 'life'. (S4 Ep4) [S]
Brand new series - Car of the Future: The builders make a futuristic car that balances on a magnetic platform and bring an old object to 'life'. (S4 Ep4) [S]
Brand new series - Build That Tune: The teams must build song titles that clearly represent the songs they're based on. Can a guest name those tunes? (S4 Ep3) [S]
Brand new series - Build That Tune: The teams must build song titles that clearly represent the songs they're based on. Can a guest name those tunes? (S4 Ep3) [S]
Brand new series - Stuntman: The teams must construct a stunt vehicle that can climb up a ramp, jump through a ring of fire, clear nine Lego buses and explode. (S4 Ep2) [S]
Brand new series - Stuntman: The teams must construct a stunt vehicle that can climb up a ramp, jump through a ring of fire, clear nine Lego buses and explode. (S4 Ep2) [S]
Brand new series - Drain the Ocean: The fourth season of the Australian version of Lego Masters commences. The eight teams have 16 hours to build a scene set on the seabed. (S4 Ep1) [S]
Brand new series - Drain the Ocean: The fourth season of the Australian version of Lego Masters commences. The eight teams have 16 hours to build a scene set on the seabed. (S4 Ep1) [S]
Brand new series - Out on a Limb: The remaining teams are given 10 hours to do up an empty tree branch that was connected to a life-size Lego tree. (S3 Ep13) [S]
Brand new series - House of Colour: The teams are given pre-built, identical, greyscale houses and have 12 hours to bring them to life with colour. (S3 Ep12) [S]
Brand new series - House of Colour: The teams are given pre-built, identical, greyscale houses and have 12 hours to bring them to life with colour. (S3 Ep12) [S]