After his last mission, he noticed he was stronger and faster, and his endurance was greater than before. He wished he could remember his last mission, but when he tried, he would just get convoluted images. For reasons he didn't know, he wanted to discover what happened that fateful mission and why he was the only survivor. Justinian Jones, an ex-Navy Seal and a lone survivor of a mission gone horribly wrong, finds himself suffering from PTSD, so his medical discharge says. Not remembering the mission or having any symptoms of PTSD, he accepts to go on a hunting trip with his brother Curt, an executive officer of a pharmaceutical company, and his research team. The mission is to hunt the giant brown bears off Unimak Island for research. The mission goes astray as Justin finds himself being one of the hunted.