Mistakes Happen

"Mistakes Happen" is the 866th episode of Casualty and the 44th and final episode of the 27th series. The events of the episode took place directly after the previous weeks, on 13 July.

Synopsis
The prison riot escalates, putting both Tom and Jeff in grave danger, while at the hospital Tess treats two young sisters who bear a great burden for such small shoulders. But the nurse also has her own personal problems to worry about - namely the fact she has fallen pregnant to a married colleague.