48 Hours: Season 17, Episode 19

17 - 19: Rescued from the Shadows

CBS News' 48 HOURS investigates the shadowy underworld of human sex slaves and rescues a young woman. Correspondent Peter Van Sant infiltrates the billion dollar business of human trafficking to reveal how easy it is in the 21st century to purchase a human being -- not for an hour, but forever -- and bring her to the United States. 48 HOURS MYSTERY.