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UNDERWORLD
Thursday 25 March at 10:00PM
National Geographic Channel
Triad trail of terror
See Chinese warfare that started a murder spree in San Francisco's Chinatown in 1977.
Tijuana Cartel
The story of a ruthless Mexican gang responsible for smuggling huge quantities of cocaine in the 1980s.
All new Underworld
Underworld
ABOUT THE SHOW
Come face to face with some of the most dangerous, deadly and intimidating gangland overlords.

They don’t call them the mean streets for nothing… Cities have long been home to gangs but why are they such a magnet for brutal criminals? Delving into the history and culture of great cities, we find out why these areas have become home to some of the most terrifying gangs in history.

UNDERWORLD: SAN FRANCISCO
When Hong Kong Triads move into San Francisco’s Chinatown, the traditional Chinese underworld collides with modern American gang culture leading to a brutal turf war. With dead bodies piling up, law enforcement struggles to smash their secretive world.

UNDERWORLD: MANHATTAN
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