This has to be one of my favourite wartime adventures that really quite powerfully illustrates not only the perils of those sailing the Atlantic during the Second World War but the courage of the ordinary folks drafted in to man these tiny ships at the mercy of the weather and the U-boats. "Ericson" (Jack Hawkins) has been put in command of an convoy escort that's staffed by a rather obnoxious former used-car salesman "Bennett" (Stanley Baker) and two green-around-the-gills sub-lieutenants "Ferraby" (John Stratton) and "Lockhart" (Donald Sinden). Initially, their task is mainly to keep…