 The team reopen a 20-year-old case when a camera and film belonging to a photographic lab assistant murdered in 1987 are found in a Soho pub toilet. New evidence leads the detectives into the dark underside of the modelling world and to the door of a professional footballer. Meanwhile, Brian s erratic behaviour takes an alarming turn and Gerry is less than happy when his daughter Emily joins the team and looks to Sandra as a role model.