The season finale amps up for a show-stopping build!

Teams are tasked with building a mechanism that successfully moves a ping-pong ball across the room.

Teams are tasked with re-creating any item from Will Arnett's high school bedroom.

The remaining contestants build a wearable mask for a costume party.

The remaining teams must craft a thrilling Batmobile that will excite the judges.

Teams are tasked with creating a build that bursts with movement and tells a compelling story.

A Wicked-themed challenge, where each team is given a mystical spell to inspire their build.

Teams each build a unique and exciting creature that comes to life as it descends a waterfall.

Each team selects a ring box holding a minifigure couple whom they must build a wedding cake for.

A thrilling "Star Wars"-themed episode, where teams must rebuild the galaxy.