Passengers bound to an African copper mine at Karanga to quell a native uprising encounter murder and intrigue on the way.

A nosy reporter (Nugent) befriends the dumb Coughlin and pushes the Governor to commute his sentence. Now, Coughlin can ride his family's pride and joy in the Kentucky Derby. BUT, the mean old Warden cancels all paroles--and the idiot decides to escape (even though he's only got 10 more months to serve). So, the reporter has a hunch and goes to see if he can find Coughlin--and the Warden deputizes him!! At this point you might wonder if the boy will make good and win the big race

A woman tormented by the hunting death of her husband forbids her son to have anything to do with horses. But when he falls for the daughter of his father's trainer, he defies his mother by entering the Maryland Hunt.

Jonathan Peckinpaw feels he's failed in his patriotic duty when he's rejected by the army, but he sees a chance to redeem himself by exposing a secret ring of Nazi spies.

The Cisco Kid is captured while keeping a rendezvous with cantina dancer Dolores but is released by his captor, the commander of a U.S. Army regiment, to help break up a kidnap ring. On his way to Las Tables with his pal, Gordito, he makes a stop at the Martinez Rancho, where they learn that his friend Carlos has been kidnapped, from his wife Marquerita. At the Crystal Palace Saloon, Cisco runs into an old girlfriend, Sally, who he once jilted for a tight-rope walker, but she doesn't betray him when the sheriff and an army officer enter searching for Cisco.

Chinese sleuth Charlie Chan discovers a scheme for the theft of government radar plans while investigating several murders.

A detective's wedding is postponed when gunshots are heard nearby.