Two naked survivalists are challenged to survive for 21 days in the Costa Rican rainforest, despite a deadly snake bite on a producer. Kim is paired with Shane. They encounter challenges including rain, illness, shelter fire, and a snake attack.

　　一男一女两位生存专家醒来惊讶地发现自己处在一个偏远而荒凉的地方。毫无装备、浑身赤裸的他们需要在此生存21天。