Deke (Denzel Washington) a burnt-out Kern County CA deputy sheriff teams up with Baxter (Rami Malek) a crack LASD detective to nab a serial killer. Deke's nose for the "little things" proves eerily accurate but his willingness to circumvent the rules embroils Baxter in a soul-shattering dilemma. Meanwhile Deke must wrestle with a dark secret from his past.