Government officials discover a horrible plot: the Chinese are tunneling their way to the United States.

British diamond smugglers use the radiowoman (Phyllis Kirk) from a freighter docked on the Thames to unwittingly "mule" their swag, hidden in cigarettes, past customs, not knowing that she has befriended an Inspector for the Thames River Patrol.

A U.S. sergeant, a British sergeant and a British pilot hijack gold for a German refugee's war orphans.

An FBI agent goes to the French-Spanish border to round up some smugglers and counterfeiters after his brother is murdered.

A boy is accidentally locked in a bank vault. With less than 10 hours of oxygen left in the vault, it becomes a race to save the boy.

While working in England, an American surgeon Dr. John Marlowe is invited to Vosnia (a fictitious East-European country) to receive an award and demonstrate his life-saving surgery. Unwittingly caught in the middle of a dangerous and corrupt series of political events, Marlowe then becomes the object of a shoot-to-kill, vicious pursuit. Fleeing, he seeks help from an English-speaking actress, Lisa Robinson, and the two attempt to escape across the treacherous mountains of Vosnia.

The sinking of the Titanic is presented in a highly realistic fashion in this tense British drama. The disaster is portrayed largely from the perspective of the ocean liner's second officer, Charles Lightoller. Despite numerous warnings about ice, the ship sails on, with Capt. Edward John Smith keeping it going at a steady clip. When the doomed vessel finally hits an iceberg, the crew and passengers discover that they lack enough lifeboats, and tragedy follows.