WOULD YOU BELIEVE IT? In Maxwell Smart’s new assignment the fate of the whole civilized world is at stake! Well, would you believe half the civilized world is at stake? But there’s nothing to get excited about. It’s just a routine assignment for our intrepid sleuth. In fact, all Max has to do is find the diabolical Dr. X and stop him from selling the invisibility serum he developed to KAOS. And since the diabolical Dr. X has amongst his luggage six invisible guinea pigs, what could be easier? So, posing as a space scientist, his assistant, and a scientific experiment, Max, the beauteous 99, and Fang (as the scientific experiment) infiltrate a group of touring scientists on a ship bound for Europe. There they set to work to find out which of the bearded scientists is really Dr. X in disguise. With the help of ingenious gadgets developed by Control’s Research and Development Department, the three gain entrance to many staterooms . . . and to the ship’s brig. But nothing will stop Max Smart when he’s on the trail of The Enemy, not even a roomful of oatmeal!