London is home to some of British football's most notorious hooligans. However, the history of such infamous 'firms' as Chelsea's Headhunters, Tottenham's Yidarmy, Millwall's Bushwackers and West Ham's I. C. F. has never been fully documented .... until now. From the late 1960s to the late 1990s the book explains not only how these groups have gained and maintained their reputations, but also why hooligans from other parts of the UK see a trip to London as their biggest challenge. Each of London's major clubs is studied to assess why some seem to attract a more violent following than others and how different inter-club and inter-regional rivalries have evolved.