After the first elimination, the game gets real! The first alliances are formed heading into the second Challenge, where their endurance and memory are put to the test. The Challengers quickly realise they are only as strong as their partners, and it will take a lot more than just physical superiority to take home a victory in this game. Power proves to be complicated for the Challenge winners when they are forced to choose between alliances and friends. Meanwhile, romance in the house heats up as one Challenger decides it's better to play hard to get.