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.

Lieutenant Johnson, a U. S. Air Force pilot, on the tip of Alaska, a few miles from the Bering Straits from Siberia, helps foil a Soviet plot to test a new secret weapon by loyal Alaskan Eskimos. He is aided by Sergeant Koovuk, an Alsaka native Eskimo also in the U.S. military service. Along the way there is an ice-floe evacuation, an air-ice rescue and a fight with a polar bear.

A World War I widow loses her only child and spends the rest of her life as a children's nurse.