|Original title||Morning Departure|
|UK Release Date|
|Directors||Roy Ward Baker|
|Cast||John Mills, Richard Attenborough, Nigel Patrick, George Cole, Bernard Lee, Peter Hammond, Andrew Crawford, Michael Brennan, Wylie Watson, Helen Cherry, Lana Morris, Victor Maddern, Kenneth More, Zena Marshall, James Hayter|
The crew of a submarine is trapped on the sea floor when it sinks. How can they be rescued before they run out of air?