New Deputy Governor Lou Stoke has her work cut out on her first day at Larkhall when a sudden illness starts striking down the inmates. As rumours of a chemical attack start to spread, panic sets in, and all fingers point to new inmate Emira Al Jahani who is sent to Larkhall on suspicion of terrorism.

New arrival Angela Robbins has been sent down for arson and attempted murder. She looks like she wouldn't say boo to a goose, but she is hiding a disturbing secret that is about to be revealed. Rowan and Lou grow closer and end up having sex. Also, Emira is freed from Larkhall after it is revealed that her husband, Hassan, was the real terrorist.