Invaders from the Central Empire held all New England and most of the Eastern Seaboard. The Purple Emperor, bloodthirsty and heartless, was subjecting millions of Americans to an endless reign of terror. Threat of the horrible Green Gas had driven our defenders to the Mississippi. The President had fled to a ramshackle courthouse in Florida. Despair filled every heart. Operator 5, leading a desperate guerilla band within the enemy lines, is America's...