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The shocking truth about Katy Trent's killer finally comes out

The deadly threat posed to Rose by Reeks forces Morgan to take matters into his own hands, setting him on a collision course with Leigh. Meanwhile, Rose tries to get close to prisoner Louis Acosta.

An accident in the prison workshop leads the inmates to go on strike, and C Wing descends into chaos. Leigh confronts the corrupt officer on her team. Rose is faced with a terrifying decision. And Jackie makes a shocking confession to Gary.

Leigh begins to doubt her team's loyalties when she discovers the identity of the undercover police officer. Meanwhile, Rose worries about her safety when it turns out that new arrival and double murderer Tyler Reeks has links to fellow prisoner Louis.

The prison officers at Long Marsh are set on making a fresh start, but Leigh hears a dangerous rumour about an undercover police officer on C Wing, The new governor orders Leigh to shut the operation down or the future of C Wing will be in jeopardy.