A group of international and American criminals are trying to learn the secret formula of a concentrated vapor fuel invented by a U. S. Navy officer, Lieutenant Dan Carrington (
Jack Doyle), who mysteriously disappears. Secret Service agent Alan O'Connor (
Conrad Nagel), assisted by federal agent Bobbie Reynolds (
Eleanor Hunt), is assigned to the case. Anna Novna (
Judith Allen), a nightclub dancer who was involved with Carrington may know more about where Carrington is than she cares to divulge.
—Les Adams <longhorn1939@suddenlink.net>