Drama series featuring an eccentric group of ex-police officers brought out of retirement to investigate unsolved crimes. When Brian's dog finds a body on a common, it prompts two people to confess to murder. But when the body turns out to be over 600 years old, Sandra, Jack, Brian and Gerry are left with the puzzle of whether the confessions are to real murders and if so, where the bodies are. Strickland is rather more keen for them to solve an even more tricky mystery closer to home.