Fact-based drama recreating the sinking of the Titanic, told from the point of view of the ship's second officer as he struggles to get as many passengers and crew off the vessel before it sinks. Meanwhile, the captain of a nearby vessel embarks on a doomed rescue mission. Starring Kenneth More, Honor Blackman, Ronald Allen, Tucker McGuire and David McCallum.

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.