The remaining eight teams compete in a game of "elimination" where the last team standing wins immunity so they can't be sent home this week. While the challenge causes rifts in the house as the players become more competitive, the trainers are determined to work the teams harder and post more impressive numbers on the scale at this week's weigh-in. Then an elimination round follows, and another team is sent packing. Alison Sweeney is the host, and Bob Harper and Jillian Michaels also star.