S2, E3: The second series of the gripping and atmospheric police drama concludes. With the body count rising and nothing tangible to pin on the twins, the police are left with no option but to take on Jimmy and Johnny Kray at their own game. Time is of the essence - can Chandler manage to apprehend the twins or will the streets of east London continue to run with blood? Chandler realises that if the team are to catch the twins, they will have to go underground, so they move to a secret location and come up with a cover story to mask their investigation. Taking a leaf from the twins' book, the police begin using the methods of Nipper Read - the man who took down Ronnie and Reggie Kray - before the case reaches a shocking conclusion. Meanwhile, Chandler starts to think that alcohol can help with his OCD, but he may just be adding to his own troubles. Miles finally discovers the truth about his father's death.