Stephen Tompkinson and Andrea Lowe star as the tenacious and stubborn Chief Inspector Alan Banks and the feisty and headstrong Detective Sergeant Annie Cabbot in three thrilling crime stories. In Playing with Fire, Banks is called to investigate an arson attack that caused two narrow boats to go up in flames. In Friend of the Devil Annie Cabbot investigates the murder of a woman found out on the moor with her throat cut. Meanwhile, Banks is called to a murder of a young girl in the centre of town. As Annie and Banks compare cases, they discover the two different murders have some disturbing similarities. Finally in Cold is the Grave Banks is asked by his boss, Chief Superintendent Gerry Rydell, to find his missing teenage daughter.