Sidney and Natalie Monty are travelling home after a fabulous holiday in Canada and America when their Boeing 747 is hijacked and all the passengers on board are gassed except by a quirk of fate, Natalie. The plane is belly flopped down where it eventually breaks up and sinks. She swims to a small island not far away but before she escapes to Nassau, witnesses some brutal murders by Le Frisk who is after the gold bullion on board the sunken plane. Befriended by Noel Sommerville, head of security at the British Consulate, are both drawn into a cat and mouse game of catching Le Frisk following...

Jack Simmons came home from the 1st World War to be told that his wife, Eve, had found another man and had gone to live with him taking his beloved daughter, Sylvia, with her. Jack teams up with an old war chum, Boddington, who was virtually crippled and who was placed into a special home for such people by his own daughter and her greedy husband. The pair also cheated him out of his import'export company and moved into his house. When Boddington finds out what his own daughter and husband have been up to, Jack and his friend, Boddington, get together and plan revenge which included murder.