Walt Disney's The Saga of Andy Burnett, Part 5 "White Man's Medicine" Season 4 Ep 20

The Saga of Andy Burnett starring Jerome Courtland, Jeff York, Andrew Duggan and Slim Pickens.  Episode 5, "White Man's Medicine" originally aired on March 5th, 1958 on Walt Disney's Disneyland.  Andy has used a telescope lens to light a fire by focusing the sun's rays, thereby making the Indians think he is a friend of the sun god.  He then convinces the chief to let them live.