Jen and a group of friends set out to hike the Appalachian Trail. Despite warnings to stick to the trail, the hikers stray off course—and cross into land inhabited by The Foundation, a hidden community of mountain dwellers who use deadly means to protect their way of life. Suddenly under siege, Jen and her friends seem headed to the point of no return— unless Jen’s father can reach them in time.

A suburban couple's ordinary lives are rocked by the sudden discovery that their children possess mutant powers. Forced to go on the run from a hostile government, the family joins up with an underground network of mutants and must fight to survive.