Eden

A photojournalist, a medic, and a chaplain embedded with a Marine unit in Afghanistan flee an ambush with the survivors of their patrol into a mysterious valley, teeming with edible plants. As the Marines prepare to fight their way out, the chaplain is troubled by visions of God; the photographer notices that the plants mutate at an astonishing rate; and the medic discovers that she's pregnant, though she can't think how.