The contestants begin the challenge! Sunshine is a good swimmer and takes an early lead. However, she notes that this shit is going to take all day. Sam is also off to a strong start, and is tied with Sunshine for an early lead. Everyone is diving down to get weights at the same time, so there are lots of collisions and kicks to the head. Oh, and wow. If you thought it was painful for the contestants to show their man-boobs on the scale, you have no idea what the close-up underwater belly cam looks like. I was, in fact, not ready for that jelly. At the half-hour point, the contestants are still at it. Sunshine has 50 pounds first, and Sam is right behind her. Victoria is in a close third. O'Neal and Mike are tied for last place.

Sunshine and Sam remain neck and neck, until they're tied at 98. Sunshine has a little extra motivation, because she wants to help O'Neal. She kicks it up and drops her final two weights on her scale. Sunshine is the winner! She doesn't miss a beat as she dives back in the water to help O'Neal. Sam finishes second, and looks to Koli to see what he should do. Koli directs Sam to help O'Neal as well. Victoria is next to reach 100 pounds on her scale, followed by Koli, Drea, Ashley, and Daris. O'Neal, with a little help from his friends, is close to finishing. This leaves Mike and Melissa in danger of coming in last. Mike is slightly behind Melissa, until everyone else starts to help him. EVERYONE. Nobody helps Melissa, because they all hate her. Sam's like, "Tough shit, that's reality." Melissa interviews that the fact that no one helped her indicates that none of them yet know how to play the game to win. They're helping Michael, who's one of the biggest players in the house. "What are they thinking?" she asks. They are thinking that Melissa is a blight on the good energy that they've managed to maintain for weeks. Mike finishes, and Melissa is last. She gets a one-pound disadvantage. She's still gunning for immunity, though.