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.

One Million B.C. is a 1940 American fantasy film produced by Hal Roach Studios and released by United Artists. It is also known by the titles Cave Man, Man and His Mate, and Tumak. The film stars Victor Mature as protagonist Tumak, a young cave man who strives to unite the uncivilized Rock Tribe and the peaceful Shell Tribe, Carole Landis as Loana, daughter of the Shell Tribe chief and Tumak's love interest, and Lon Chaney, Jr. as Tumak's stern father and leader of the Rock Tribe.

When a waiter makes a lucky hit and wins a benefit prizefight, gamblers rig some fights for him; but a reporter arranges for a real boxer to put him in his place.

In 1918, Elizabeth MacDonald learns that her husband, John Andrew, has been killed in the war. Elizabeth bears John's son and eventually marries her kindly boss. Unknown to her, John has survived but is horribly disfigured and remains in Europe. Years later, on the eve of World War II, Elizabeth refuses to agree to her son's request to enlist and is stunned when an eerily familiar stranger named Kessler arrives from abroad and becomes involved.