Ross Kemp squares up to the world's hardest streetfighters in ''Gangs''...Across the world millions of people are members of street gangs. In groups they fight, stab, rob, rape and murder anyone who isn't one of their own. And when rival gangs meet - what you get is warfare. Ross Kemp, whose dad was a copper and taught him right from wrong, decided to infiltrate these secret underworld organizations to discover who they are, what makes them tick and what the law is doing to curb their criminal activity. On his harrowing journey he: meets murderous members of the Number gang in a Cape Town jail; crosses paths with warlords in Guatemala; gets shot at in El Salvador; is set on fire as an initiation test for Russian Neo-Nazis. Only TV hardman Ross Kemp could get this close to the world's most violent street gangs: he's tough enough to earn their trust and so get them to confide their innermost secrets. It's a wild ride - and not for the faint hearted. Ross Kemp was born in Essex in 1964, to a father who was a senior detective with the Metropolitan Police and had served in the army for four years.He is a BAFTA award-winning actor, journalist and author, who is best known for his role of Grant Mitchell in ''Eastenders''. His award-winning documentary series ''Ross Kemp on Gangs'' led to his international recognition as an investigative journalist.