During World War 1, an Austrian Battalion holds a mountain stronghold against the attack of the Italian army.
A beautiful Russian spy seduces an Austrian military officer in order to obtain secret plans. When she falls in love with him, both are placed in danger.
A beautiful showgirl, name "the Canary" is a scheming nightclub singer. Blackmailing is her game and with that she ends up dead. But who killed "the Canary". All the suspects knew and were used by her and everyone had a motive to see her dead. The only witness to the crime has also been 'rubbed out'. Only one man, the keen, fascinating, debonair detective Philo Vance, would be able to figure out who is the killer.
The younger brother of an officer in a secret government code-breaking unit gets involved with a gang of spies and a beautiful double agent.
Molly, the eldest child of a group of orphans being used as slaves on a farm hidden deep in a swamp, must rescue the others when their cruel master decides that one of them will be disposed of.