In this week's challenge, the candidates were divided into two teams to repair the water recycling system at the headquarters to maintain its stable temperature. In a real situation, such a process is very dangerous since astronauts are exposed to radiation hence wearing a spacesuit is necessary.

During the challenge candidates were reqiured to put on space suits and were given 10 minutes per team member to go outside the HQ to make necessary repairs by connecting pipes from a water tank to the habitat.