Starting in San Salvador the smallest, most densely populated and most dangerous country in Central America, Ross immerses himself in the dangerous world of the Mara Salvatruchaor MS13gang. “El Salvador has a level of violence that far exceeds any other country I’ve been to.” says Ross, “There are on average 11 murders a day in a country with a population smaller than London.

In Poland, he follows Neo-Nazi football hooligans who have become one of the most feared gangs in Europe. Young men with few prospects use violence as a means of escape, and Ross experiences first hand just how dangerous it can be when he's tear-gassed at a football match.

Orange Country, California, regarded as the birthplace of American skinheads. The recent amalgamation of various factions has led to the creation of the Orange County Skinheads where Ross gets to grips with the impact of this group on a concerned community.

"Ross uncovers the extent to which the Nazi, or National Socialist, groups are gaining power in Russia: it would seem that at best the police turn a blind eye to racism, at worse actively endorse it. And Ross meets one Member of Parliament who openly promotes Nazi ideology. Ross joins one Neo Nazi group during their training and through a series of tests -which include him being set on fire - he g

Ross Kemp travels to Kingston, Jamaica, the murder capital of the world, were gangs historically aligned to Jamaica's two political parties. Ross discovers the gangs have moved away from their political roots and now engage in a bloody turf war, funded by drugs and driven by tit-for-tat reprisals, that has spawned a new generation of even more violent gangs.

Ross’s examines Middle America’s gang culture with a visit to St. Louis, Missouri; where he takes a look at how this Midwestern municipality with a population of 342,000 people, there are around 380,000 guns – and many of these are in the hands of gang members with apparent affiliations to gangs in Los Angeles.

Highest murder rate in the world for a country not officially at war. Ross visits Kingston, the most violent area in all of Jamaica, and speaks to gang members there."A study carried out by A. Harriott shows that the homicide rate in Jamaica is four times higher than the world rate, with the city of Kingston having the highest rate in the world at 109/100,000, followed by Washington D. More..C.,