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.

Lucas’ cover is threatened when Carrie decides to give him over to Rabbit in an effort to protect herself and her family. Meanwhile, a drugstore robbery turns into a full-blown hostage crisis at the high school, with Deva and Mayor Kendall’s wife Janie among those whose lives are imperiled.

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.

Como consequência do tiroteio sangrento contra Rabbit, Lucas, Carrie e o departamento do xerife de Banshee são interrogados pelo agente especial do FBI Jim Racine (Zeljko Ivanek), que administra as punições que podem ou não ser condizentes com os crimes. Proctor tenta convencer Rebecca a voltar aos seus cuidados. Enquanto Gordon se fica se remoendo quanto à traição da esposa, Deva mostra o quanto é cheia de recursos quando é pega roubando mercadorias num comércio. Um assalto a um caminhão vira uma perigosa perseguição em alta velocidade envolvendo um misterioso motociclista.

Rejeitada por Deva e Gordon, Carrie é forçada a encontrar uma nova residência. Com suas habilidades de liderança questionadas pelo rival George Hunter na reunião da comunidade, Alex aumenta seus esforços para recuperar o dinheiro roubado no assalto ao cassino. Siobhan revive um pesadelo quando seu marido, Breece Connors, reaparece querendo reatar o relacionamento. Lucas recebe o pedido de retornar o favor de Proctor.

Um assassinato chocante perto de uma fazenda amish desgasta as relações entre a tribo Kinaho e os amish, que são forçados a confiar em Proctor para afastar uma multidão vingativa. Investigando o crime no território Kinaho, Lucas e seus detetives são confrontados por membros da gangue que pouco cooperam e por seu líder impositor, Chayton Littlestone. Carrie dá as boas vindas a um visitante inesperado, enquanto Lucas lida com a repentina aparição de quem ele menos desejava ver.

Seguindo uma pista de Brock, Lucas visita um severo professor amish que pode ter algumas ideias sobre o assassinato da membro da tribo Kinaho, Lana Cleary, e sobre o desaparecimento de Solomon Bowman. Emmett e Siobhan descobrem que transferir um prisioneiro Chayton é mais difícil do que o esperado. Rebecca lida com a dor da rejeição de seus pais. Proctor faz a Alex uma oferta de paz, e Nola faz uma última tentativa de justiça.

Lucas considera seguir em frente depois que ele e Carrie fazem um desvio no retorno a Banshee. Enquanto isso, Racine relembra um caso contra Rabbit que o assombrou por anos.

Quando o passado de Jason volta para assombrá-lo, Lucas decide fazer um acordo para salvar a vida do garoto. Na ausência de Carrie, as vidas de Gordin e Deva saem do controle. Já Proctor ensina Rebecca uma dura lição sobre lealdade.

Em um esforço para derrubar Proctor, Lucas procura árvores para balançar. Após lidar com os clientes regulares e com as strippers no Savoy, Lucas se aproximam de Sharp, um skinhead que pode ter informações sobre a operação de ecstasy de Proctor. Enquanto isso, uma crise em família aproxima Carrie, Deva e Gordon. Para completar, Alex se depara com um voto de não-confiança no conselho tribal, enquanto Job mostra seu lado explosivo.

Uma busca ilegal ajuda Lucas a apreender Proctor, porém isso teve um custo. Enquanto isso, Sharp e os skinheads buscam vingança contra Emmett, testando os limites da paciência do policial. Ao mesmo tempo, Carrie arruma dinheiro para o tratamento de Max e toma um pequeno passo na relação com Gordon e Deva. Para completar, Job finalmente consegue uma pista sobre Rabbit.

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.

Nola returns to Banshee. Proctor's mother ails from a disease. Carrie must choose between the heist and her relationship with Colonel Douglas Stowe.

Nola and Burton have a bloody confrontation. Tommy defies Chayton's orders and attacks Proctor's club. Hood's secret is threatened when a FBI agent shows up at his door, as someone close to him discovers the truth.

Carrie quits her job at the diner. Deva steals from a video game store. After Siobhan's discovery, Lucas decides to kill Proctor before leaving Banshee for good, with unforeseen consequences.

Cadi becomes a war zone when Chayton and the Red Bones attack the station with Hood, Brock, Proctor, Siobhan and the others trapped inside.

Hood copes with Siobhan's death. The FBI takes over in the hunt for Chayton. A wedge is driven between Proctor and Rebecca.

Despite Job’s reservations, Lucas and his team pull off a daring heist at Camp Genoa. Lucas and Chayton are haunted by their recent deadly encounter. Calling a truce, Gordon and Carrie attempt an unusual intervention with Deva. Unbeknownst to her uncle, Rebecca heads to Philly to work out a deal with a spurned Proctor client.

Lucas and Brock head to Louisiana and the infamous Underground fight club in search of Chayton. Stowe pieces together details about the Camp Genoa heist, and who might be responsible. Burton’s torment turns to resolve. Sugar looks to repay an old boxing debt. Rebecca’s initiatives put Proctor and Emily in harm’s way.

Lucas recalls the history of his friendship with Job, while pondering the future – if there indeed will be one. Proctor and Emily pay the price for Rebecca’s recklessness. Carrie and Gordon pick up the pieces of their shattered relationship. Stowe and Leo land a big fish. Bunker reconnects with his skinhead past. Deva gets a lesson about crime and punishment.

Lucas recalls a furtive chapter in his life and a fan of Job's work offers him special treatment. Later, Lucas is surprised when Gordon joins him for final negotiations with Stowe in Genoa, and Proctor and Rebecca pick up a new ally as they depart for Philadelphia to settle a score.