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.