A year into their service, the team confronts a surge in drug-related crime, pulling them into the heart of a loyalist estate. The ensuing violence threatens to fracture the professional bond between Stevie and Grace.

The neighborhood felt the escalating tension of a loyalist gangland dispute. On a night out, Annie made a rash choice.

A rising tide of unrest in Mount Eden compels Stevie to face a long-buried history. Meanwhile, Annie navigates the repercussions of a rash choice.

A new leader has taken the helm in Mount Eden: Lee. Driven by Canning's demands for tangible progress, Shane steers Tommy toward perilous circumstances.

Annie faces the potential loss of her position. Meanwhile, as Lee tightens his grip on authority, Stevie and Grace are forced to collaborate on an emergency response, an undertaking that unravels with devastating results.

A disquiet settles over Mount Eden as Grace struggles to wrest Henry from Lee's influence. Meanwhile, a long-held secret reaches Happy, bringing with it a sudden and profound understanding.