Episode 1
Ross travels to El Salvador to meet the "most dangerous gang in the world", MS13 (Mara Salvatrucha). In a country with a population smaller than London, there are over 800 murders a year, and MS13 boasts over 100,000 members.
Episode 2
Ross explores Cape Town’s multifaceted ‘Numbers Gang’, which thrives in the over-crowded prisons. In Pollsmoor Prison, Ross experiences the terrifying sensation of incarceration among vicious murderers, rapists, and violent armed robbers. He receives first hand accounts of the police killings which are required for initiation into the gang.Episode 3
Ross examines Middle America’s gang culture with a visit to St. Louis, Missouri, where he takes a look at how in this Midwestern municipality with a population of 342,000 people, there are around 380,000 guns. Many of these are in the hands of gang members with apparent affiliations to gangs in Los Angeles.Episode 4
Ross infiltrates Moscow’s vicious Neo-Nazi gangs to discover who is behind a recent wave of racist attacks and hate crimes, and uncovers the extent to which these groups are gaining power in the country.