Brothers Mitch and Mike McLusky navigate Kingstown, home to multiple prisons, as they act as the liaisons between prisoners and the community. When a young guard, Sam, is set up to deliver a letter for a prisoner, Mike works to get him off the hook.

After a tragic accident has deadly consequences, an all-out manhunt ensues. Meanwhile, Mike reaches out to a former prison contact.

Everyone wants something from Mike, who reminds them who is in control. Iris visits Mike’s office. Mariam and Mike discuss Kyle’s future.

Kyle and Ian are questioned by internal affairs in the wake of the shootout. Bunny asks Mike for help with a close family member.

When a fight breaks out on the yard, Sam finds himself in trouble again. Milo goes to extreme lengths to get what he wants. Mike sends a message.

Mike pays Milo a visit, looking for answers. Tensions at the men’s prison reach a boiling point. Mike makes a disturbing discovery.

Kyle and Kingstown PD try to make sense of the crime scene. Mike takes matters into his own hands. Sam makes a costly mistake.

Tracy has good news for Kyle. Mike and Iris spend a peaceful day at the cabin, unaware of the trouble escalating back in town.

Kingstown Prison descends into total chaos. Mike desperately works to help stop a riot that will have serious consequences for all involved.