Teddy was all set for a campout at his friend Sage's family ranch, but then Sage gets terrible news: The skull of a rare dinosaur that was being excavated on his property has mysteriously vanished overnight in the middle of a rainstorm, even though it weighed 500 pounds. Not a single footprint has been left behind. Since the dinosaur was top secret, the police don't believe anyone outside the dig could have stolen it. A T-rex skull can sell for millions of dollars, and everyone is a suspect, including J.J. McCracken, the owner of FunJungle.