Season 4

01 Brick Lake Episode 128th September 2023 The daring duos embark on a mission to construct the ultimate motorized party boat that showcases their unique personalities. 02 Catropolis Episode 25th October 2023 The builders must make pet palaces for kittens. 03 Volcanic Brickruptions Episode 312th October 2023 The builders must skillfully construct a scene inspired by their chosen biome while including an explosion and a compelling narrative. 04 Build It by Ear Episode 419th October 2023 The builders must choose from a selection of sound effects and transform what they think their sound would look like into a LEGO model. 05 Cirque du Soleil Episode 526th October 2023 The duos divide into two big teams to construct a mesmerizing show consisting of four breathtaking acts. 06 Is It Brick? Episode 62nd November 2023 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. 07 Brick Chic Episode 79th November 2023 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. 08 LEGO 2K Drive Episode 816th November 2023 Teams use bricks to create an off-road remote-controlled vehicle for an ultimate race. 09 Roller Coaster Madness Episode 930th November 2023 The pairs are tasked with creating a roller coaster that incorporates a mechanical lift and a drop. 10 Bricks & All Episode 107th December 2023 Counting down the top 100 moments from four seasons of "LEGO Masters." 11 Four-Ever Finale Episode 1114th December 2023 The three remaining teams must create a massive build complete with storytelling and creativity. 12 Celebrity Holiday Bricktacular: Candy Cane Express; Holiday Blockbusters Episode 1218th December 2023 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. 13 Celebrity Holiday Bricktacular: Let It Snow; Brickmas Carols Episode 1319th December 2023 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.