Episode 1
Prison officer Leigh lives for her job at Long Marsh men's prison. But when mouthy young Rose arrives, fresh out of training, C Wing will never be the same again.
Episode 2
As the pressure on her rises, how far will Leigh go to save her job? Rose starts to find her feet in a terrifying new world.
Episode 3
Will Leigh cross the line between officer and criminal? Rose carries out a dangerous mission, and finds herself trapped in a potentially deadly double bind.
Episode 4
Leigh becomes increasingly isolated from her sceptical colleagues. A guilt-ridden Rose takes a chance to make amends. Toby's suspicions lead him to his own investigations.
Episode 5
With C Wing on lockdown, the prisoners' mental health reaches crisis point in an under-resourced and chaotic system. Meanwhile, Rose sees an opportunity, and Toby threatens to escalate his suspicions.
Episode 6
As Long Marsh comes under the spotlight, life on the tense and paranoid C Wing is altered forever - and everyone is a suspect