

Watch The Riders of the Whistling Skull (1937) for free in the UK on Prime Video. Last updated 3 April 2026.
During an archeological expedition for the lost indigenous city of Lukachukai, the Three Mesquiteers venture into a land of mysterious death cults.
Director: Mack V. Wright
Streaming info last checked: 3 Apr 2026
Fern Emmett
Henrietta McCoy