On tonight's "Survivor 24: One World" 51 year old retired policewoman Nina Acosta became the second castaway voted off the show. The episode began with the women calling a group meeting to try to organize their fractured tribe. Most of the women thought that Sabrina would make a good tribe leader and eventually Sabrina agreed to do it. Later that day, the castaways received two large crates that contained instructions and materials for a Do It Yourself Reward Challenge. The tribes had to untie the knots on a long rope to release a metal ring. The men ended up winning the challenge and were awarded a tarp. Later, a depressed Colton left the men's tribe to go and spend time with the women. Problem is, the women didn't really want him hanging around with them either, forcing Colton to mosey on back to his original tribe. That night, Colton decided to strike up a misfits alliance and showed his hidden immunity idol to Jonas, Tarzan, Leif and Troyzan. The next day, the tribes competed in the Immunity challenge, which consisted of lining up on a narrow balance beam and one by one moving around your tribemates to get to a platform. The bad communication on the women's team, mostly due to Kat, allowed the men to win the challenge. Back at camp, there was a pretty obvious split between the alliance of the five younger girls and Nina, Monica and Christina. At tribal council, Nina made the case for Kat to be voted out since she blew the challenge for them. But in the end, the alliance of five stuck together and voted out Nina.