This new series tells the insider story of some of America's most notorious street gangs. Viewers learn how gangs shaped their times and affected the neighborhoods that they controlled. Gangs usually start out as a form of protection for their members and the community but then, grow predatory as they feed on the very people that they purport to defend. With exclusive interviews and rarely seen footage, this series is a raw look at life inside these gangs, from those who live it and the agencies that are working to stop them. Gangs include: Nuestra Familla, 18th Street Gang, Country Boys, The Council, MS-13, Mexican Mafia, Black Panthers, Stones, Hells Angels, Skinheads, Latin Kings, and others.