One horrible night, Marcus, a runaway teenager, is suddenly seized by men in black masks. They throw him into a van and administer a sleeping serum. When Marcus wakes up, he's surprised to discover a tattoo on his arm that reads, "Marcus1125." He soon learns that he is part of a radical group's cruel experiment called Survival Op, a test that gauges the neurological, physical, and emotional endurance levels of individuals who must survive in extreme situations. With this information, the group will be able to better assist their soldiers in the field. Taken to an isolated island in the Bermuda Triangle by the Survival Op personnel, Marcus's objective is simple: to survive no matter what happens. Marcus tries to adjust to his new environment behind the electric fence. When "Lynn312," another runaway teenager, is thrown into his life, the two put their wits together to increase their chances of survival.
Battling overwhelming hunger, harsh weather conditions, and ferociously thick vegetation, Marcus and Lynn struggle constantly to stay alive. But none of their obstacles compare to the fear of being hunted by the Survival Op assassins. Worse, a vicious creature lurks in the wilderness, waiting to catch them. Can Marcus and Lynn find a way to survive, or is their fate already sealed?