The Incredibles are back in a book-length adventure! Baby Jack-Jack gets a cold, and it's made his super-powers highly contagious! Whenever the super toddler sneezes, someone gets his abilities! When the super-family's enemies figure out the toddler's secret, they put the whole city at risk! Can the Incredibles find a cure for the alien virus, or will the newly?powered villains have the family at their mercy?