Rod Slater is the newly appointed general manager of the Sonderditch gold mine, but he stumbles across an ingenious plot to flood the mine, by drilling into an underground lake, so the unscrupulous owners can make a killing in the international gold market.
Roger Moore
Susannah York
Ray Milland
John Gielgud
Bradford Dillman
Tony Beckley
Simon Sabela
Marc Smith
John Hussey
Bernard Horsfall
Bill Brewer
Norman Coombes
George Jackson
Ken Hare
Ralph Loubser
Philippe Mareuil