Mitchell is a tough American businessman living in England who decides to handle his son's kidnaping without the aid of Scotland Yard. He sends the culprits twice the ransom requested, which, as Mitchell hoped, causes in-fighting among the gang members. One is killed, leaving clues to
where the boy is being held. Equipped with a flame thrower (whatever happened to good old American handguns?), Mitchell storms the hideout and saves his son, while Scotland Yard captures the kidnapers.