Watch Cities of the Underworld - Under the Rock

Cities of the Underworld Season 3 Episode 10

Season 3 Episode 10

First Aired: January 12, 2009

Description: While most people think of San Francisco as a haven for peace-loving hippies, this city by the Bay is actually one of the biggest military defense installations in America. Go beneath its picturesque hills and uncover the biggest ammunitions depot on the West Coast before plunging into a deadly More