The Unseen Enemy in this wartime meller is Nick (Leo Carrillo), the outwardly effusive manager of a San Francisco waterfront café. To make enough money to ensure his daughter Gen's (Irene Hervey) entree into society, Nick sells his services to a gang of foreign spies, who then use Nick's establishment as a rendezvous point. The plan is to covertly send out a Japanese vessel for the purpose of raiding and destroying American merchant ships. The spies' secret code is hidden in the lyrics of a song called "Lydia", which the unwitting Gen performs on request day after day.

Having paid for the education and legal training of his younger brother, Bruce, with the idea that he would become a lawyer and join his business, Frederick Garth, a racketeer posing as an honest businessman, is dismayed when he learns that Bruce has become a G-Man instead.

A temperamental singer's murder leaves a nightclub full of suspects.

This drama chronicles the education of a naive, rich young woman who inherits a steel mill. To help her keep it running she unites with a man. Meanwhile two crooks try to destroy her production in order to force her to sell it to them for very little money. They are thwarted at the last moment.

A cowboy and sidekick infiltrate a rustler gang to avenge the murder of their pal.