Life-sized gingerbread house versus life-size snow globe.

Buddy Valastro and his team go up against famed glassblower Deborah Czeresko's team to make light-filled creations for judges Jason Chatfield and Courtney Quinn. Buddy's piece depicts a Christmas Eve accident that finds Santa tangled in holiday lights, and Deborah's work incorporates glass and neon into icicles, mistletoe and a mischievous glass mouse who's taken a bite out of Santa's cookie.

Buddy Valastro competes against Lego artists and brothers Corey and Travis Samuels to build an incredible, unique toy. To impress judges Jason Chatfield and Courtney Quinn, Buddy's team builds an adult-size drivable elf sleigh cake as they take on the Lego team's life-size action figure.

In a challenge to create pieces that tell a story, Buddy Valastro competes against animatronic expert Lou Nasti, who's spent his career building Christmas-themed works of art. Judges Jason Chatfield and Courtney Quinn will pick the winner between Buddy's holiday cake-making factory and Lou's version of Santa's workshop, complete with a talking reindeer.