Jonathan Scott guests in a two-challenge finale, and the winner is crowned.

Four remaining designers choose a classic TV sitcom kitchen as the inspiration for a modern version in their design labs; the designers tackle their first camera challenge, and "Sister/Sister" star Tia Mowry guest judges.

Competitors must bring the inside out and the outside into their Labs.

Competitors team up to turn huge, broken-down vehicles into luxury spaces.

Dancer tWitch guest stars as the competitors design spaces that transform.

Jasmine Roth guests as the competition begins at the amazing Design Hub.