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
Sir Hugh
David Tomlinson
Harold Tufnell-Jones
Tab Hunter
Ben Harris
Susan Hart
Jill Tregillis
John Le Mesurier
Rev. Jonathan Ives
Henry Oscar
Mumford
Derek Newark
Dan
Roy Patrick
Simon
