America's medical history is infected with myths. George Washington's doctors may have inadvertently killed him; Abraham Lincoln used a toxic remedy that warped his mind; and heroin was once a best-selling cough suppressant.

The true stories behind America's most infamous bad guys: Al Capone, Benedict Arnold, Jesse James, and Billy the Kid; and the truths behind America's notorious secret societies are investigated: Freemasons, Mafia, and Skull and Bones.