Location: HMP Y Glannau, and prisoner, Barry Hardy, picks up a bag of drugs off the floor after someone dropped them. A decision that is going to change the course of his life forever. Although his cellmate, Peter, tries to persuade him to get rid of the drugs, Barry thinks he knows better. A bloody incident on the wing means that the officers, Elin and Ned, worry about their jobs. And a new prisoner arrives. Kit Brennan isn't a stranger to everyone, and his appearance disturbs the equilibrium.
Lowri's anxiety is increasing, but with Dani's unwaivering support and some inspiration from Mia she comes up with a plan that will lift her spirits. Unfortunately, the proposed holiday does not have the same effect on Philip as he continues to try to hide with financial problems. Money is also on Britney's mind as she is pressurised to look for a job. Sian's house is full of fun as an unexpected visitor takes care of the cooking and entertainment.
As Barry comes under pressure for his ill-advised decision to sell the drugs he discovered, he tries to reason with the real owner of the bag. When it makes the situation worse, he has no choice but to enter into a partnership with Kit. Peter is looking forward to his mother's visit, but circumstances beyond his control push him over the edge. And Elin and George's relationship heats up, but Elin has her doubts.
