The FBI profilers race to the Deep South when two people are targeted by a copycat killer imitating the method of a murder active three decades ago.
The Behavioural Analysis Unit is called in on a Denver case where a home invasion led to the slaughter of an entire family.
With their heroin deal unravelling and threatening to divide the Crowe clan, Ava delivers bad news to Boyd as she faces a deadly juncture in the launch of her drug smuggling ring.
As Boyd's plan to keep Ava from being tried threatens to unravel, an unexpected reunion with Loretta McCready pits Raylan against two hit men working for a ruthless Memphis drug lord.
As overseeing an asset forfeiture leads Raylan to discover a crime boss's hidden treasure, Boyd continues his efforts to try to clear Ava of a murder charge. Dewey's cousins arrive from Florida to take over the brothel he bought from Boyd.