Never turn your back on a friend. Jade, Stef, and Zoe are hiking Washington State's Bones Hollow Trail, braving cougars, black bears, and storms that roll in without warning. Their anxiety isn't helped by listening to a true crime podcast about the serial killer who once prowled this same forest. When Stef twists her ankle--badly--there's no one to hear them scream for help.  Unfortunately for them, the only thing more twisted than this nightmare is their friendship