Desc: 'Doc' Crow: The Legend of Johnny 2-Strings: Directed by Alonzo F. Jones, Aqua Jones, Aquanetta Jones. With Al Alexander, Al Battle, Bryant Bentley, Redd R.J.G. Branner. 'Doc' Crow, a legendary blues man who, at the height of his touring career on the famed Chitlin' Circuit, vanished without a trace.