One moment good-will bound the United States and the great Power across the sea... the next, shells screamed their death wails into Coast homes and factories. No citizen was safe from the bloody holocaust when the Yellow Empire struck without warning from the Pacific. With fiendish artifice the world was turned against us. And somewhere in this country, covertly completing the terrifying work of wholesale destruction, lurked the ruthless agent of the invading hordes. Operator 5 alone guessed the dread secret and matched his individual might against a million war-drunk terrorists-while the nation trembled on the brink of red wreckage!