An eye-popping decision bordering on reckless puts a survivalist's challenge at risk. Two camps go head-to-head when one team sabotages the other's hunt. A tribe begins an epic project to take on the swamp -- building a primitive canoe from a downed log. 

Days from the end of their 60-day challenge, the remaining survivalists join forces against the frigid swamp. Desperate for a big kill, all seven go on an epic group hunt. During extraction, a vessel takes on water and puts a pair at risk for hypothermia.