A chance discovery leads American mining engineer Ben Harris and acquaintance Harold to discover a lost city under the sea while searching for their kidnapped friend Jill. Held captive in the underwater city by the tyrannical Captain (Vincent Price), and his crew of former smugglers, the three plot to escape...
Vincent Price
David Tomlinson
Tab Hunter
Susan Hart
John Le Mesurier
Henry Oscar
Derek Newark
Roy Patrick
Dennis Blake
Steven Brooke
Jim Spearman
Tony Selby
Michael Heyland
John Barrett
William Hurndell