As his power over the Korban cult grows, Joe sets a deadly plan in action using new acolytes to carry out his demands. Meanwhile, Ryan and Max devise a plan to contact Joe, in hopes of tracking down his whereabouts, and Weston meets with a face from the past.

A deadly massacre, thought to be sparked by Joe Carroll, leads Ryan and Mike into very dangerous territory. But as more details are revealed, they realize another leader might be on the rise. Meanwhile, Joe continues to train the Korban cult and confirms his new plans with Emma and those who doubt him.

After a series of public condemnations of Joe and his followers, Joe targets the son of a man who stands against him. Meanwhile, Ryan is faced with the shocking news of Claire's reappearance and Mandy makes a decision that leads her to a familiar face which could undo all that Joe has been working for.

Ryan tracks down the location of the Korban compound with hopes to infiltrate the cult and capture Joe Carroll, but all doesn't go exactly as planned. Meanwhile, Claire asks Carrie to deliver a message to Joe, and Weston makes a decision that will change the course of his life forever.

Joe Carroll puts his final plan into action, threatening the lives of many, as Ryan and Mike go to great lengths to stop him and prevent more innocent lives being lost. Meanwhile, Claire makes a decision that leads her into dangerous territory, and Mark and Luke attempt to figure out their next move.

Mark and Luke turn the tables on both Ryan Hardy and Joe Carroll, forcing the two sworn enemies to come together to save the woman they love.

With Joe Carroll awaiting execution on death row and all signs of his following erased, Ryan Hardy has moved on from the dark events of his past. But his newfound happiness is shattered when a series of brutally staged tableaus threatens to tear open old wounds. Ryan and his team are forced to unravel a twisted web of violence before it destroys them all - leading them to face a terrifying truth: Joe Carroll was just the beginning.

Ryan believes he has found the connection between Andrew and Mark, but he and the FBI are still unsure if - and how - Joe Carroll might be connected. Meanwhile, tension between Mark, Kyle and Daisy mounts and Ryan soon finds himself in a dangerous situation, in which facing the truth is the only thing that will set him free.