Ted leads UCOS into the investigation of an apparent suicide of a city trader in the 1980s. The team delve into the dark world of the macho fraternity of the so called 'Wolfpack' however the team soon discover a world of debauchery, and secret all-nighters to bond the traders together. Is their tight bond worth killing for? Elsewhere Sasha returns to UCOS to find herself pushed out of her office by Ted.

Danny, Ted and Steve investigations leads them to a lookalike agency where their two top acts were found dead in an apparent double suicide over a decade earlier. The team are convinced there is more to the case than meets the eye. Elsewhere Steve is overwhelmed when their enquiries lead them to the door of one of his football idols. His excitement is soon short-lived when he remembers an expensive birthday gift. Sasha is occupied with trying to instil discipline into her son Alex as well as taking on an intensive training course.