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.

Starring:

Anne Nagel, C Montague Shaw, Charles Calvert, Constance Worth, Crane Whitley, Frank Mayo, George Burr Macannan, George Morrell, George Pembroke, Hans Heinrich von Twardowski, Hans von Morhart, Jack Cheatham, Jack Gardner, Jack Mulhall, Kenneth Harlan, Michael Vallon, Michael Whalen, Poppy Wilde, Robert Frazer, Rudolf Steinboeck, William Bakewell, Willia

Genre:

Drama