Two industrialists disappear from an airplane while the plane is in the air. Also missing is $100,000. The Falcon investigates and discovers a plot against the government.

The Falcon is called to a young woman’s school to investigate a murder. When he arrives, another victim is discovered.

Gildersleeve, running for office, is aided by two ghosts and hindered by a mad scientist and an invisible woman.

Once again Paula the ape woman is brought back to life, this time by a mad doctor and his disfigured assistant, who also kidnaps a nurse in order to have…

Old rivals are pitted against each other in basic training and fight for the same woman.