By land and by sea the ferocious Hordes descend upon the United States, dealing destruction with new and horrifying weapons: with viscid poisons, with lethal gases, with flaming thermite — and with an invisible death-force more fearful, more annihilating than any weapon yet known to man. Before the ruthless Asiatic Invaders even Operator #5, America’s Secret Service Ace, stands helpless — hunted like a rat, harried and set upon by those who should be striving shoulder to shoulder with him to turn back the greatest Threat ever to assail the bulwarks of Western Civilization! Go with crack Secret Service agent Jimmy Christopher as he meets the challenge of Invasion of the Warlords, torn from the pages of Operator #5 magazine, June 1935.
