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.
You can now watch The Riddle of the Sands online on the following streaming providers in the United States.
| Directing | Tony Maylam | Director |
| Writing | Erskine Childers | Novel |
| Writing | Tony Maylam | Screenplay |
| Production | Drummond Challis | Producer |
| Sound | Howard Blake | Original Music Composer |
| Camera | Christopher Challis | Director of Photography |
| Editing | Peter Hollywood | Editor |
| Art | Hazel Peiser | Production Design |
