From The Internet Movie Plane Database
TV Series (1971)
Rod Taylor (Hank Brackett)
Dennis Cole (Johnny Reach)
Henry Darrow (Raoul Estaban)
Two honorable men-for-hire look for adventure in the pre-World War I American southwest in their fancy Stutz Bearcat.
Ep.1.12 The Return of Estaban
Registration N916M, serial 117. This aircraft is inaccurate for this time period, first flying in 1925.