Black market moonshine is big business — high-proof, low-cost, untaxed and illegal. But the law is cracking down and urban bootleggers are bringing fresh competition. It's the first day of the whiskey-making season for one expert moonshiner. Rosco needs two key elements for a successful and lucrative operation — secrecy and water. He's found the perfect hidden site deep in the traditional heart of moonshine production: the southern Appalachian Mountains. But 700 miles southwest, in Holmes County, Mississippi, there's a special police unit cracking down on 'shiners like Rosco.