Volunteering for some heavy-duty landscaping at the city zoo, the Thing and the Human Torch run across the zoo's top secret new exhibit: Devil Dinosaur! But the Fantastic Four soon find out that it isn't all fun and games to find a dinosaur at a zoo, and between the mystery of the zoo's recent plague of nighttime break-ins, and having the cosmically powered Collector show up to claim the dinosaur he won on an interstellar auction website, the price of admission to THIS particular zoo is a world of hurt.