Haunted by his inability to locate Job, Lucas returns to Banshee to find the town dramatically changed, with a new sheriff, a new mayor, and a serial murderer on the loose.
In search of murder clues, Dawson and Lucas converge in a members-only Goth club replete with painful S&M initiation rites; Calvin is tested by Watts' mercenary partnership with Proctor.
Dawson narrows her search for Declan Bode, a Satanist person of interest in Banshee's serial murders; Calvin throws down a gauntlet to Proctor, and to Kurt; Carrie's recent vigilantism puts both her and Deva in peril.
Lucas and Brock ramp up their efforts to hunt down Declan Bode; Kurt looks to keep Maggie safe while Calvin takes out his frustrations at the office; Job settles an old score.
Carrie faces backlash in the wake of her revelation to Gordon and Deva about her past; Lucas faces a new threat; Chayton Littlestone is hell-bent on whipping the Kinaho tribe into a frenzy of violence against their enemies.
Lucas and Carrie investigate the tunnels under Camp Genoa; Proctor and Rebecca become embroiled in a face-off with rival drug suppliers; Carrie tries to end a relationship with Colonel Douglas Stowe.
Lucas' secret is threatened when he's arrested; against Chayton's orders, Tommy Littlestone spearheads a second strike against Proctor at a local gentlemen's club.
Siobhan is torn between exposing Lucas and keeping his secret; Brock learns that his ex, Emily, is working as a caregiver for Proctor's mom; Chayton readies his army for an assault.
Looking to avenge Tommy's death, Chayton and an army of Redbones invade Banshee; while holed up in the Cadi, Proctor becomes increasingly frustrated by his inability to attend to his ailing mother at home.
Lucas and his team pull off a daring heist at Camp Genoa; both Lucas and Chayton are haunted by their recent encounter; Gordon and Carrie attempt an unusual intervention with Deva.
While pondering the future, Lucas recalls the history of his friendship with Job; Proctor and Emily pay the price for Rebecca's recklessness; Carrie and Gordon pick up the pieces of their shattered relationship.
Following a lead, Lucas visits a strict Amish schoolteacher who may have insights into the murder of Lana Cleary; transferring a captive Chayton proves more difficult than expected.