Season 2

With a fake ID, 19-year-old Kenia Monge heads out for spring break. When she vanishes, Colorado police target a good Samaritan, who isn’t.

An Arizona College student is killed in a trail assault, and the case goes cold for decades until new DNA science identifies the killer

Ohio State freshman Stephanie Hummer is killed en route to a party. After dead ends and false confessions, DNA names her killer.

A California mother and two teens are abducted and killed on a Yosemite trip, and another senseless murder is needed to corner the killer.