5. Sweden: A Gangsters Paradise

The once-quiet suburbs of Sweden's major cities are the epicentre of a vicious turf war between rival gangs competing for the drug trade. The fierce competition has resulted in a series of tit-for-tat killings with almost daily shootings and bombings. More than 45 people have been shot dead so far this year. Paraic O'Brien steps onto the frontline of Sweden's deadly gang war, as the country becomes one of the most lethal for gun crime in the whole of Europe.