Voir Cities of the Underworld, Season 3 - Episode 7

He was the mastermind of the most notorious murders in U.S. history. He terrified the world and plunged the city of Los Angeles into a state of paranoia and fear. He's Charles Manson, and the deserts around Los Angeles were his home--where he hoped the underground would be his haven. But Manson and his followers weren't the only dangers lurking beneath the streets of LA. We'll take you below the most congested avenues of this classic American city, into the tunnels where corrupt cops secretly ran the city, and where the largest subway system in the world lies in waste. From earthquakes to UFOs, Los Angeles--population 9 million plus--has to be ready for anything. With military bunkers protecting our shores and subterranean disaster-relief war rooms surveying the next big quake, LA's underground holds the key to its survival.