Unjustly expelled from Harvard when a stash of cocaine is found in his
possession, Matt moves to London to live with his sister and her husband
Steve. He is quickly introduced to Steve's chirpy, cock-sure younger
brother Pete. Initially, Pete is reluctant to get acquainted with Matt
and allow him to tread around the capital city with him because he may
be seen by others as an 'outsider', but after a heavy drinking session
with him and his mates he quickly changes his opinion of him. On the way
back from a football match, Matt is viciously accosted by a gang of
Birmingham City thugs, until Pete and his friends step in and save him.
It is from here that Matt learns the truth about Pete and his friends-
they are football hooligans, operating the GSE (Green Street Elite)
'firm.' Initially afraid of the violence, Matt soon ends up becoming as
desensitized to it as his new found friends - but as events roll on...