Former detective Rod Carter reveals how a spate of more than 50 murders have emerged from a gang rivalry in Manchester that began over a borrowed leather jacket, exploring the tiny area of the city that has played host to many of the deaths. Former gang leader Matthew Norford explains how a fight over territory led to him being shot, while ex-enforcer Cody Lachey talks about how many drug gangs worked hand-in-hand with door staff to maximise their profits.