Narrated by Meredith Vieira. In Marshall County, Alabama, crystal meth has permeated the rural community on all fronts, to the point where the area has earned the nickname “Meth Mountain.” Affected individuals featured on the show include Chuck, a man who may lose custody of his children because of his addiction; Boo, a long-time addict who looks far older than his 58 years; Shanta, who injected meth while she was pregnant; and Dr. Mary Holley, a crusading obstetrician whose addicted brother committed suicide.