A recently paroled master thief assumes the identity of Lucas Hood, sheriff-in-waiting of Banshee, Pa. Keeping his history a secret, Lucas befriends boxer-turned-bartender Sugar Bates, and settles into his new life as Banshee’s sheriff. Lucas inadvertently gets tangled up in the rampant corruption of shunned Amish gangster Kai Proctor, while keeping a vigilant eye out for Mr. Rabbit, the New York mob boss who wants revenge against Lucas and former partner and lover Carrie for the jewel heist that landed Lucas in prison.

Proctor’s desperate underling Hanson decides to hold a rave in an Amish barn, selling homemade E pills stolen from Proctor to Banshee youth including Deva, Carrie’s rebellious daughter. Catching wind of the plan, Lucas and his team orchestrate a raid, but the effects of a tainted batch of pills send many revelers into convulsions, with one notable fatality.

A mixed martial arts title bout is being planned at the local Kinaho Moon Casino, run by tribe leader Benjamin Longshadow and his son Alex. Huge profits are anticipated for Banshee investors, but the enterprise is threatened when the champion angers Lucas.

A botched museum heist in Harrisburg has unintended consequences, as Lucas, Carrie and Job renew their partnership, at least for the moment. Later, after coercing redneck henchman Arno to offer up incriminating evidence, Lucas and Emmett arrest Proctor for Hanson’s murder, but are detoured on the way to the jail. Sugar looks for a cut; Kendall gets roughed up; Lucas and Carrie love the ones they’re with.

A band of marauding bikers crashes the annual Banshee Spirit Festival, with deadly consequences, sparking Lucas and Siobhan to meter out vigilante justice. Burned after losing his key witness against Proctor, Lucas is further dismayed when FBI agent Xavier arrives to monitor the situation. Rebecca Bowman, torn between passion and her Amish roots, finds a kindred spirit in the sheriff.

Wicks, an ex-con from Lucas’ past, passes through Banshee, triggering memories about the Albino, a brutal insider enlisted by Rabbit to make Lucas’ prison life a living hell. Proctor turns to extortion when a reverend refuses to sell his home to make room for a casino hotel.

Carrie urges Lucas to let go of the past, even as an increasingly suspicious Gordon is hell-bent on uncovering hers. Cast out of her Amish home, Rebecca turns to Proctor to give her a new start in Banshee. A surprise visit from Rabbit’s lieutenant, Olek, a.k.a. Widow’s Peak, brings back a flood of memories for Carrie. As his family keeps vigil for the ailing Benjamin Longshadow, Alex gets a surprise visit from his sister Nola.

As Rabbit closes in on Carrie and Lucas, Carrie flees the hospital in a desperate attempt to collect her family and get them out of town. Kai introduces Rebecca to the business world, and sends Lucas a message about fooling around with his niece. Alex Longshadow recruits a Proctor thug with gambling issues to deal with a work-stoppage problem at the casino.

Recalling a series of prison therapy sessions that fueled his hatred of Rabbit, and pressed by Xavier’s insistence that the FBI handle a kidnapping case, Lucas makes a decision that will change the collective fate of Carrie, her family, Sugar, Job, and the entire Banshee police force. A special delivery at Alex’s doorstep leads Nola to reconsider her future; Kai teaches Rebecca the power of telecommunications.

In the aftermath of their bloody shootout with Rabbit, Lucas, Carrie and the Banshee Sheriff's Department (BSD) are interrogated by FBI special agent Jim Racine, who metes out punishment that may, or may not, fit the crimes. Meanwhile, Proctor sets his sights on persuading Rebecca to return to his care. As Gordon stews over his wife's betrayal, Deva shows off her resourcefulness after being caught shoplifting in a mall. Later, a straightforward armored-truck robbery turns into a dangerous high-speed chase involving a mysterious motorcycle pursuer.

While in New York, Job visits a priest with ties to Rabbit; Carrie's relationship with Gordon faces a new test following another revelation.

Lucas and Carrie steel themselves for a showdown with a vengeful Rabbit and his ruthless soldiers; Rebecca proves her allegiance.

With Rabbit dead and Emmet's death avenged, Banshee has since been nothing but a quiet town. But things begin to change when Hood eyes a risky new job, as Chayton returns railing the Kinaho to war.

With his inability to find Job, Lucas returns to Banshee two years later to look for a serial murderer on the loose.

Resolved to leave Banshee, Lucas learns that the murder case he thought was finally closed may in fact be opening again. After a tense faceoff with Calvin and the Brotherhood, Proctor looks to finalize his deal with the Colombians. Carrie takes aim at one final act of vengeance. Brock demands allegiance from Bunker as Banshee braces for an uncertain future.