The Riddle of the Sands

Directed by Tony Maylam

Written by Tony Maylam, John Bailey

Cast: Michael York as Carruthers, Jenny Agutter as Clara, Simon MacCorkindale as Davies

Released 1979

The year is 1901. Two British yachtsman have sailed to the Frisian Islands off Germany when they come across the formation of a German fleet preparing to invade the U.K.