A car is pulled from Strangford Lough, the owner kidnapped. DCI Tom Brannick recognises the calling card of a legendary assassin known as Goliath. The legend goes that he was a serving police officer who vanished without trace 20 years ago - and among his original victims was Tom's wife. In the face of opposition from old friends, Brannick and his partner, DS Niamh McGovern, reopen the Goliath case in the hope that it will help them solve the kidnapping.