Scientist Mark Plotkin races against time to save the ancient healing knowledge of Indian tribes from extinction.
| Actor | Role |
|---|---|
| MMark PlotkinHimself | Himself |
 Susan SarandonNarrator (voice) | Narrator (voice) |
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Scientist Mark Plotkin races against time to save the ancient healing knowledge of Indian tribes from extinction.
| Actor | Role |
|---|---|
| MMark PlotkinHimself | Himself |
| Susan SarandonNarrator (voice) | Narrator (voice) |