Classic public domain film, digitally preserved and free to stream forever.
Ghost Patrol (1936) is a Western serial in which a scientist develops a ray gun capable of stopping aircraft engines in mid-flight, and a gang of outlaws uses the device to bring down mail planes and steal their cargo. A federal agent goes undercover to smash the operation before more lives are lost.
Starring Tim McCoy, Claudia Dell, and Wheeler Oakman. This film is in the public domain and free to watch, download, and share.