A carnival showman tries to keep Japanese spies from sabotaging the Panama Canal.
A policeman's family helps to exonerate him of murder charges in the death of a man he had under interrogation.
While an escaped convict, Moose Malloy, goes in search of his ex-girlfriend Velma, police inspector Michael O'Hara attempts to track him assuming him to be a prime suspect for a number of mishaps.
In the 1943 invasion of Italy, one American platoon lands, digs in, then makes its way inland to attempt to take a fortified farmhouse, as tension and casualties mount.
