Mercy Plane is a 1939 American aviation crime drama film directed by Richard Harlan and starring James Dunn, Frances Gifford, William Pawley, and Matty Fain.

The plot involves military aircraft being stolen by "hot plane" thieves, to be re-sold to new owners, with most of the world at war, presumably to war-torn countries.

Meanwhile, Speed, looking for extra cash to support his flying hobby, applies for a job as a test pilot at the Benson aircraft factory.

The two are unhurt, but Speed pretends that the radio has been damaged and continually cuts off communication with air traffic controllers attempting to pinpoint his location.

After five days during which all search efforts have failed and the pair is assumed dead, Speed finally tells her that his plan is to get her brother to bring the Mercy Plane out of hiding to rescue her.

Brenda doesn't believe him, but indeed, Big Jim sends Rocco out to rescue his sister when Speed claims over the "broken" radio that she is badly injured.

Speed is the only one left who can fly the Mercy Plane back to Los Angeles, where he is removed from all suspicion and his pilot's license restored.

Aeromovies adds that the Mercy Plane itself, a Lockheed Model 12 Electra Junior, "looks very conventional, but nevertheless has some surprising flight characteristics: barely taken off, it climbs vertically like an F-15 or a Rafale, and lands like a Harrier".