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: George Sherman
Writers: George Zuckerman, Leonard Lee, Victor Canning
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A top secret microfilm is smuggled via a cigarette and a meatball (don't ask!) into the collar of one of a pair of black panthers being transported by "Quain" (Howard Duff) from Europe to the United States. When their train is derailed and the panthers escape, "Quain" and his new…
