Robbie gets pointers on how to approach girls from a streetwise contemporary named Spike.

A power struggle erupts between the Wesayso Corp. and Robbie after he invents a way to generate energy as a science project.

A wild plant has a weird effect on the dinosaurs--it makes them dopey and happy, to the exclusion of everything else.

The four-legged dinosaurs encroach on the pistachio-nut supply of the "normal" dinosaurs...and that means war.

Earl, Roy and Charlene pose as entertainers and rush to the front to retrieve Robbie.

When Robbie can't beat a gang of hoods (who keep beating him), he joins them.

Robbie dates Richfield's daughter, whose gluttonous reputation gives Robbie food for thought: he may be her next meal.

Robbie resorts to using Thornoids in an attempt to impress a girl at school.

Robbie crosses over to the swamps and gets sold on the mammals' "swamp music", but they're liable to be sold out in a dinosaur record deal, which Robbie orchestrated.

When overwhelming urges to do the mating dance arise in Robbie, Earl prefers not to discuss it, but Fran waltzes into Robbie's classroom to educate the kids about it.

Charlene feels her family is neglecting her, so she gets their attention by winning the school talent show but her rising fame is riding on the backs of three young cavelings she found in the forest whose mother is looking for them.