When a girl falls to her death from a ferris wheel, it is thought to be a tragic accident - until DS Satchell's aunt comes forward with suspicions of foul play.
DS Satchell and his family find themselves the target of a notorious crime family when he witnesses the slaying of an informer following a jewellery raid.
DS Satchell is desperate to find his wife and daughter now that they are misssing. Walker and Connor try to find the evidence to put the Bilkin family behind bars. Satchell decides to take matters into his own hands when he feels he has nowhere else to turn.