Though it"s not traded on Wall Street, marijuana is a booming cash crop that rakes in billions of dollars in cash-strapped California - and an estimated tens of billions of dollars nationwide. "Marijuana Inc: Inside America"s Pot Industry" goes inside California"s "Emerald Triangle" - the marijuana capital of the U.S. - and reports the personal stories of growers, buyers, and retailers... many of whom are otherwise everyday, law-abiding citizens.