PHOTO: They’re back in the good books.

Put a bunch of people who don’t really like each other together, ask them to work cohesively with little sleep and make them renovate half an apartment together. Yep, it’s The Block’s challenge apartment week. What could go wrong?!

Plus, the contestants are playing to take money off their all-important auction reserve prices, so the stakes have never been higher. (That’s stakes, not steaks; steaks come from cows which are probably what the judges will be having when they see some of the efforts today.) Remember, the winner of The Block is the couple who sells their apartment the highest above reserve, and all the couples take home any money above the reserve price.