| Synopsis: |
Speed Rush, "hard-boiled Ace of the private detectives", is called in by Fenton, who is charged by the Rajah of Dewar to cut the famous Dewar Diamond, worth half a million dollars. International diamond thief Rocks McCool steals the gem at gunpoint, and takes Rush and Fenton aboard a ship, intending to encase them in cement and drop them overboard. But Rush disarms one of the crooks and holds the others at gunpoint until the arrival of the Coast Guard. |