Ugh and Dino Boy fall down a hole when they are being chased by a Tyrannosaurus Rex. While they are trying to figure a way out, Dino Boy is grabbed by Moss Men and dragged underwater and to another section. Ugh follows and sees that they are about to sacrifice Dino Boy and Ugh swoops in from above and save him in the nick of time.
They are on a ledge and they fight off several of the Moss Men who try to climb up. Ugh gets mad and throws a huge boulder down and it causes an earthquake. The Moss Men run away and a way out appears and they get out to find Bronto waiting on them. They get on Bronto and the Tyrannosaurus Rex starts chasing them again.