DI Neil Manson's suspicions about DI Peter Cavanaugh continue during an obbo on the diamond heist suspects. When the suspects get away from them, Cavanaugh doesn't seem particularly concerned. Concerned for the safety of DS Samantha Nixon and PC Cameron Tait who are undercover as waiting staff on the target boat, Manson orders DS Phil Hunter on to the boat as well. PC Gabriel Kent could be in trouble when Roy Stafford turns up at the station to report Kent's assault on him. Insp. Gina Gold is delighted she may be able to get rid of the evil Gabriel at last, but a Coal Lane resident arrives and gives Kent an alibi. She has an ulterior motive however - as well as approving of Kent's brutal actions on Stafford, she wants him to enact some vigilante justice on a loan shark on the estate. CPS Lawyer Jonathan Fox asks Gina Gold out on a date, and Supt Adam Okaro continues to receive hate mail from within the station.

Don Beech has the only evidence that could incriminate corrupt DI Peter Cavanaugh. DCI Jack Meadows is reluctant to have to rely on the slippery Beech, but Supt Adam Okaro insists he is their only choice. DI Neil Manson and DS Phil Hunter take Beech to visit Maggie Black who has the incriminating tape, and Beech asks Manson if he can have ten minutes alone to ""say goodbye"" to Maggie. Manson foolishly agrees, and when DS Hunter goes to interrupt their little liaison, he finds himself held at gunpoint. Beech is on the run again! DI Peter Cavanaugh contacts DS Samantha Nixon and declares his love for her, begging her to join him on the run. She agrees, but informs DCI Meadows of his plans. Using her mobile as a tracking device, Meadows and his team close in, but when Cavanaugh realises he's been betrayed he takes Nixon hostage. DS Ramani De Costa requests a profiler when she suspects a serial rapist may be at work in Sun Hill, but is told that another attack must take place before a profi