Doctor Maston implants a tracer in Noah so that Mister Moloch can track him and capture GeeKeR. But the tracer affects Noah's brain, causing him to gradually revert to savagery. Noah soon goes off on a berserk rampage, and Becky and GeeKeR have to track him down. But when they find him, they discover that the nine-foot dino would just as soon chow down on friends as strangers.