Mac and Stella investigate when they find the body of Paddy Dolan, a longshoreman. Part of the body is found on a transport truck and another part back at the warehouses, but Mac encounters difficulty with the investigation when the workers put up a wall of silence against them. Aidan and Danny investigate the death of Debbie Bogda, who was found naked on the expressway, and their investigation leads them into a world of sexual games and bondage once they realise she was actually harnessed to the front of a truck.