GMen vs. The Black Dragon 1943 is a Republic Pictures Movie serial. It is noteworthy among adventure serials as containing an unusually high number of fistfights, all staged by director William Witney and a team of stuntmen.
After Japanese spies from the infamous Black Dragon Society infiltrate United States borders, Federal Agent Rex Bennett is enlisted by the government to capture them. As Oyama Haruchi, leader of the dangerous paramilitary group, begins to destabilize the United States war effort through sabotage and corruption, Bennett must team up with British special agent Vivian Marsh and Chinese special agent Chang Sing to stop them and help win the war.GMen vs. The Black Dragon was commissioned based on the success of the serial Spy Smasher, although the production team preferred to have a noncostumed character. ........
Source: Wikipedia