Leslie Lamb

Two teams of Rock the Block veterans and two teams of first-time rookies create gorgeous kitchens and living rooms as the ultimate renovation competition begins. A surprising delivery gets dropped off and Bobby Berk arrives to judge.

It's the Final Week and the teams empty their budgets and race to finish their homes before a winner is declared! "Property Brother" Jonathan Scott and Ty Pennington judge before the teams have the chance to tour each other's houses for the first time.

In Week Two, the teams bring their A-games as they race to finish the rest of their first-floor spaces. HGTV stars Jasmine Roth and Mina Starsiak-Hawk come to judge and determine whose work wins the week.

It's Week Three and the teams tackle their main suites and make massive moves as some desperately seek their first win. "Divided by Design" stars Eilyn and Ray Jimenez judge the stunning spaces.

Ty Pennington challenges the teams with their toughest obstacle yet: transform a bonus loft and staircase in only 48 hours. All work and no sleep pushes the teams' creativity, and, in a twist, the teams judge each other's spaces and pick a winner.

It's Week Five and creativity is king as the teams head downstairs to design their lower levels, complete with kitchens and unfinished spaces. "Battle on the Mountain" star Kim Myles arrives to judge the artistic endeavors.