A year into the job, the team are faced with a drug-fuelled crime wave that leads them into a loyalist estate. A unhappy clash puts Stevie and Grace's working relationship at risk.

A loyalist gangland feud turns up the pressure on the section. Annie makes an impetuous decision on a night out.

As tensions grow in Mount Eden, a response call forces Stevie to confront his past. Annie deals with the consequences of an impulsive decision.

Lee is the new boss in Mount Eden. Under pressure from Canning to get results, Shane leads Tommy into danger.

Annie's job is on the line. As Lee consolidates power, Stevie and Grace are thrown back together on a response call, with terrible consequences.

Mount Eden descends into chaos as Grace tries to get Henry out from under Lee's control. Happy finally learns the truth.