When private detectives Cassie Dewell and Jenny Hoyt reunite to investigate a car wreck outside of Helena, Montana, they soon discover that the case may not be as straightforward as it seems. As they unravel the mystery of the accident, their worlds will collide with a band of unsuspecting teens, a flirtatious face from Jenny’s past, and a vicious outsider hellbent on finding answers.

Cassie, Jenny and newly appointed sheriff Beau Arlen maintain order in Helena, Montana with their unparalleled investigative skills. But when a local backcountry trip led by charismatic outfitter Sunny Barnes goes awry, the trio faces their most formidable mystery yet – in which no camper can be trusted and where danger lurks around every jagged rock and gnarled tree.