The search for a missing government informant pits Raylan against both the Crowder and Crowe clans, while a standoff with Cousin Johnny reveals a powerful rival to Boyd's drug business. An investigation into mobster Nicky Augustine's death threatens to implicate Raylan.
As Raylan investigates the Crowe crime family's role in the disappearance of a corrupt Florida Coast Guard officer, Boyd revives a failed drug deal to help keep Ava's murder case from going to trial.
While moving to undermine the murder charges against Ava , Boyd reaches out for new partners. Art steps up his investigation of the Tonin crime family.
As Art's frustration with Raylan boils over, the Crowe family battles both the U.S. Marshals and the Crowders to stay in Harlan. Boyd enlists unlikely allies to insure Ava's safety in prison and to regain control of the local drug trade.
Raylan is lead on a wild goose chase by a computer hacker while Ava looks to secure her safety in prison; and Boyd and Johnny square off over a heroin deal in Mexico.