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.
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.
Unaware that Raylan is using Ava as an informant, Boyd sets a daring bank heist in motion.
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.