An undercover narc dies, the investigation stalls, so the Detroit P.D. brings back Nick Tellis, fired 18-months ago when a stray bullet hits a pregnant woman. Tellis teams with Henry Oak, a friend of the dead narc and an aggressive cop constantly under the scrutiny of internal affairs. They follow leads and informants turn up dead.

A man awakens in a car wreck at the bottom of a steep cliff. He can’t remember who he is or how he got there, but a report over the radio fills in some of the blanks, as it describes a violent bank robbery and names a perpetrator who happens to be sitting dead in the back seat.