In the dense wilderness of Yellowstone National Park, a photojournalist named George witnesses the carnage brought on by three young renegade Predators. Mya, a naturalist, has stumbled across a noble elder of this alien race, every bit as tough. Its purpose is a mystery to her but soon becomes clear: As the renegades mercilessly carve a wake of death, they are unaware that one of their own has come to Earth to hunt them.