Roger Quain, escorting two zoo-bound black panthers on the train from Milan to Paris, is unaware that a Western agent, Catherine Ullven, has hidden a microfilm in the collar of one of the animals. But when the train is derailed in the Swiss Alps and the panthers escape, she is forced to involve him in her mission, which now includes enemy agents hunting the microfilm, the animals, Catherine and Roger.
Director of Photography: Irving Glassberg
Screenplay: George Zuckerman, Leonard Lee
Director: George Sherman
Producer: Ralph Dietrich
Steve Quain
Catherine Ullven
Chris Denson
Stephen Paradou
Paul Kopel
Doctor Stahl
Captain Heimer
Georg