In this season of Brother Vs. Brother, Drew and Jonathan are competing in one of he hottest real-estate markets in the US — the San Francisco Bay area. For the first time they're purchasing houses to flip sight unseen, so the challenge is especially intense. Each has a renovation budget of $500,000, and the brother with the biggest profit from the sale of his flip house wins, and all of the proceeds go to charity.

Real estate pro Scott McGillivray (Buyer's Bootcamp) knows a thing or two about flipping properties, so he's well qualified as the first guest judge in this year's competition. Here he meets with Drew and Jonathan to go over the ground rules for round 1. It's pretty simple. The brother who pulled off the best living-room transformation, in the opinion of the judge, wins this phase of the competition. The loser faces the first of several grueling "dare" challenges. In this case, that means running up the famously steep Lyon Street Stairs, a familiar San Francisco landmark.

Competition is in their DNA. Jonathan is looking to strike back and regain victory after losing to Drew last year in Galveston. Drew want's to show Jonathan what it's like to lose two years in a row. Ready, set, renovate.

First step: demolition. Drew uses a sledgehammer to knock down the fireplace and wall separating the living room from the kitchen.