A Fortune in gold, taken from the wreck of a Spanish galleon, is hidden in the home 
of Anton Benson, a reclusive miser. 
The entire Benson family and household want the gold for themselves, including a 
mystery villain known as the Iron Claw. 
Newspaper journalist Bob Lane, with his photographer Jack Strong and Benton's niece 
Patricia, attempt to get to the bottom of the mystery