Michel Smith Boyd

Four teams of HGTV stars design breathtaking kitchens as the ultimate renovation competition begins. After a hot-air balloon ride over the mountains offers inspiration, Dave and Jenny Marrs (Fixer to Fabulous) judge the jaw-dropping finished spaces.

The teams sprint to the finish before a winner is named and redemption earned. Property Brother, Jonathan Scott judges their work.

With the first floor complete, the teams head downstairs to tackle the biggest space ever seen on Rock the Block: the lower level.

With budgets dwindling and pressure mounting, everyone sprints to finish their houses. After six weeks, a winner will be named and bragging rights claimed. Plus, the teams get to see each other's homes for the first time as previous Rock the Block champions Jasmine Roth, Egypt Sherrod and Mike Jackson judge their work.

It's week three and the competition turns up as the teams renovate their main suite.

The teams design their exterior spaces during a snowy week on the block, and Brian and Mika Kleinschmidt arrive to judge.