The goose-stepping armies of the Purple Emperor massed in the passes of the Continental Divide, ready to swoop down upon the last defenders of American soil and drive them relentlessly westward into the sea. Grimly the besieged force, without guns or supplies, waited the attack they could not hope to hold off. Then Operator 5 played his last card-a daring dash into the Occupied Territory, where his life was worth a province to the man who could...