Merrick-Alexander Productions

A Nazi spy ring is after a chemical formula that increases the power of ordinary gasoline for U.S. Army aviation use. Two U.S. chemical companies are developing the formula, with each working on half for security purposes. The spies get half the formula and know that either of two chemists, Robert Norton or Tom Fielding, knows the rest. They capture Fielding, through a ruse by gang member Linda Pavlo, and threaten the life of his sister Nancy and his mother if he does not give them the formula. To protect his friend Fielding, who does know the formula and is engaged to Nancy, Tom pretends to know the secret and boards the Dawn Express plane with the spy leader and his gang.

A female reporter goes undercover to investigate the series of mysterious disappearances of young women, who were all linked to a local drama school.

A woman hoping to raise cash to pay for an operation to restore her blind brother's eyesight finds herself implicated in a nightclub murder.

Famed striptease artist Ann Corio stars as Annabelle, a cabaret dancer who returns to the Florida bayous whence she came.