The Mysterious Pilot is a 15-episode 1937 Columbia movie serial based on the book by William Byron Mowery and starring the record-breaking aviator Frank Hawks.

[3]Carter Snowden (Kenneth Harlan) about to marry Jean McNain (Dorothy Sebastian), is accused of murder.

Snowden sends a bodyguard to find Jean, who appeals to RCMP Captain Jim Down (Frank Hawks) for help.

With his friend "Kansas" (Rex Lease) and Indian Luke (Yakima Canutt), Jim hides Jean.

Source:[4] Mysterious Pilot was adapted from the novel "The Silver Hawk" by William Byron Mowery.