In these shifting sands, men can disappear without a trace . . . and their secrets with them.

The Riddle of the Sands (1979)

Directed by Tony Maylam

In the early years of the 20th Century, two British yachtsmen (Michael York and Simon MacCorkindale) stumble upon a German plot to invade the east coast of England in a flotilla of specially designed barges. They set out to thwart this terrible scheme, but must outwit not only the cream of the German Navy, but the feared Kaiser Wilhelm himself.