Terry Dyer has been recently released from prison, where he was imprisoned for a crime he still maintains he did not commit, and he returns to his East London estate in search of the truth. The father of the victim he was convicted of killing, Ken Randle, confronts and wounds him. D.C.S. Walker is empathetic to Ken's situation and releases him on bail, and then Ken soon becomes doubtful of Dyer's guilt, growing convinced that a friend of his son's was involved in his murder, and soon long-buried secrets are unearthed, leading to an unexpected twist, while D.S. Satchell finds his career may be in danger.

Dyer is released and Ken Randle confesses to Fisher's murder and goes on trial. However, Sarah comes to see Walker. She is anxious to tell him what really happened on the night that her brother was killed. As a consequence the charge of murder against Randle seems less likely but the remainder of his family will never be the same again.