Scientist Mark Plotkin races against time to save the ancient healing knowledge of Indian tribes from extinction.
Director:
Writer:
Mark Plotkin
Himself
Susan Sarandon
Narrator (voice)
Nov 1, 1991
May 10, 2002
Apr 27, 1959
Mar 13, 2007
Mar 26, 2016
May 14, 1993
Jul 28, 2005
May 1, 2004
Sep 5, 2005
Oct 20, 2000
May 12, 2017
Sep 12, 2008
Aug 28, 2009
Apr 1, 2005
Jul 27, 2017
Nov 2, 2006
Jan 1, 2007
Sep 9, 2006
Aug 4, 2006
Nov 14, 2008
