Morning Departure At the end of World War II, a Royal Navy submarine on routine patrol strikes and detonates a mine. The subsequent explosion sinks the submarine, killing most of its crew. Frantic efforts are taken to rescue those remaining alive. Details Casts Title Morning Departure Release Date 1946-12-01 Runtime 01 Hours 30 Minutes Genres Drama TV Movie Production Companies BBC Production Countries United Kingdom Nigel Patrick... Lt-Cmdr. Stanford... Derek Elphinstone... Lt. Manson... Ronald Adam... Lt. McFee... John Baker... Petty Officer Barlow... Alban Blakelock... Leading Seaman Hillbrook... Patrick Macnee... Stoker Marks... Michael Hordern... Commander Gates... Robert Raglan... Commander Whately... Cameron Hall... Able Seaman Higgins... Fred Groves... Captain Fenton... Michael Caine... Teaboy...