The introduction of home meth labs into Tennessee mountain communities at the beginning of the new millennium blindsided authorities as meth labs spread like a deadly virus; by 2004 Tennessee accounted for 75% of all meth labs busted in the southeastern US as authorities removed over 700 Tennessee children from their parents in meth-related incidents. From meth's introduction as a deadly drug phenomenon, to the hard lessons families learn about addiction, to a grass roots effort to innovate legislation to control a meth crisis, CRANK: Darkness on the Edge of Town offers an anatomy of one town's waking nightmare to mirror America's struggle with methamphetamine.