Twenty-three-year-old Hailey Cain is going nowhere fast. A bike messenger on the free-for-all streets of San Francisco, she's trying to outrun her failure to graduate from the United States Military Academy, as well as the tragic accident that forced her to leave Los Angeles. When an old high school friend, now a career criminal, calls asking for a favour, it seems like an easy job: drive a naïve teenage girl home to her family's village in rural Mexico. But on an isolated highway, Hailey and her charge drive into a calculated ambush from seven heavily-armed men. Hailey is shot. The girl disappears. When Hailey finally recovers, the only thing she knows is that everything she thought she knew was wrong. The smart thing would be to go home and lick her wounds in private.

But Hailey is through with doing the smart thing, the easy thing, the safe thing. Instead, with little more than resolve, she goes on a mission for answers . and for justice.