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Challenge master Shelley Craft puts the couples through their next big challenge.

The teams head outside because it's all about exteriors and landscaping on the block this week. Each designer knows the importance of curb appeal, and this challenge could be the difference between winning and losing the whole competition. Interior designer Carmine Sabatella and landscape designer Mike Pyle, stars of the upcoming HGTV series Inside Out, will evaluate the outdoor spaces. 

The teams sprint to add the most value in their final spaces before a winner is named and redemption earned. Teams also tour each other's houses for the first time while Property Brother, Jonathan Scott judges their work.

Teams stay outside in week five as they design their docks, balconies and front exteriors. Ty asks everyone to get artsy in his latest Design Surprise before Rock the Block winner Michel Smith Boyd and HGTV star Veronica Valencia judge the luxe spaces.

The teams get down and dirty when they head upstairs to renovate the main bedroom and bath. It's high stakes as Egypt Sherrod and Mike Jackson come to blind judge, and the competitors know winning these important spaces could make any team a frontrunner.

The competition continues in week two as the teams tackle the first floor living spaces. From fancy doors to marble floors, each duo's unique strategy and design style flourishes, giving guest judge Page Turner a difficult task when choosing a winner.

The teams race to finish their houses before their money runs out and judgement day arrives. Drew Scott and previous Rock the Block winners Brian and Mika Kleinschmidt judge the entire homes while each team finally gets to see their competitions' spaces.

Everyone heads down to the basements to design 1400 square feet of unfinished space, and tired of losing, two teams make big, expensive moves to grab the win. Then, a heavy metal band stops by for a Design Challenge, and Tamara Day comes to judge.

Leanne, Alison, Mina and Jasmine reach the final week and finish the remaining rooms and exteriors. Drew and the appraisers inspect each house, and the designer with the biggest increased value earns bragging rights and a street named in her honor.

Four teams of HGTV all-stars return, designing gorgeous kitchens in a quest for redemption as the ultimate renovation competition begins. After battling an open floor plan, the teams are judged by Married to Real Estate's Egypt Sherrod and Mike Jackson.

With the first floor complete, the teams head downstairs to tackle the biggest space ever seen on Rock the Block: the Lower Level, 1500 square feet of blank canvas to create some of the most outrageous spaces ever seen. HGTV's Alison Victoria and Veronica Valencia wade through the luxurious fun to choose a winner.

It's week three and the competition turns up as the teams renovate their main suite. Elevated designs rule the day as Unsellable Houses stars Lyndsay Lamb and Leslie Davis come to blind judge and determine if any team left things too basic.

In week two, the teams create stunning Living Rooms and Entryways for their homes. Fireplaces and Rocky Mountain views seem like a sure thing until Rock the Block alum Mina Starsiak-Hawk and HGTV's Jenn Todryk tour everyone's work and pick a winner.

The teams finish their first floor renovation as they tackle the main bedroom suites. It's the ultimate test of luxury versus functionality as Rock the Block veteran Alison Victoria and HGTV star Page Turner judge these jaw-dropping spaces.

With budgets dwindling and pressure rising, the teams head outside to design their outdoor spaces. It's all about curb appeal and backyard amenities until Ty disrupts their plans just before Mina Starsiak-Hawk and Karen E Laine begin their judging.

Time to head outside as teams design their exterior spaces during a snowy week on the block. Ty encourages everyone to get sporty thanks to his last Design Surprise and Rock the Block Season 2 winners Brian and Mika Kleinschmidt arrive to judge.

The competition heats up as the teams head outside to tackle their backyards and pools in a Rock the Block first. Teams have a front row seat to each other's designs before Rock the Block Season 2 Winners Brian and Mika Kleinschmidt return to judge.

The Rock the Block renovation competition begins with the heart of the home -- the kitchen -- as each team tries to add the most value. Chopped's Ted Allen tests their mettle with a Design Twist, while HGTV's Tarek El Moussa and Heather Rae Young judge.