"Prisoners of Kurrgo, Master of Planet X"
Planet X stands in the path of a killer asteroid, and its leader, Kurrgo, makes a bold plan for salvation. He sends a robot to Earth, who manages to turns the entire population against the Fantastic Four.
The Fantastic Four return to Planet X and aid Kurrgo by devising an evacuation plan for the population of 5 billion. Reed shrinks them to the size of mice so they will all fit on the evacuation ship. All except Kurrgo, whose blind desire to rule keeps him from making it on board the escape ship.