One of Reed’s experiments goes awry, causing the Fantastic Four to begin shrinking… and they’re not stopping. Within hours, the FF will shrink out of existence unless Reed can reverse the effect. But at miniature size, even a trip to the lab becomes a challenge, even more so when HERBIE’s security systems recognize the action figure sized FF as an infestation of rodents and begins to hunt them down! Even with a helping hand from the Astonishing Ant-Man, the FF are in for a giant-sized challenge.