Printed in U.S.A. Comics #4, May 1942 - 7 pages.
A notorious Frenchman known as La Barbe is in Alaska with his team of murderous henchmen out to kill any gold mine owner who refuses to sell their claims to him. Rockman hears of him via his vibragraph and decides he must put an end to the thieving and killing. Unfortunately Le Barbe has a deadly 'sleeping-gas bomb' which zonks out its victims.