Ted leads an investigation into the apparent suicide of a city trader embroiled in the cut-throat world of London's financial district back in the '80s. With Ted capitalizing on his acting talents, the team delve deeper into the macho fraternity of 'the Wolfpack' and soon find a darker side to the debauchery, secret hand signals and all-nighters that bonded the traders together - including a strict hierarchy that might just be worth killing for. Sasha's nose is put out of joint when she returns to a different kind of boys' club, and Steve tries to learn some trade secrets on the job, amid his own financial crisis.