A shiny new jewel goes missing — but where did it go? A lost feather leads to adventure. Baby T. rex sneaks into another dino's nest for a snack.

Plant-eating dinos aren't kind to the T. rexes. While one twin dreams of having big muscles, the other wants a friend to play ball with.

Sticky slime glues the twins together. The baby finds a fresh supply of fish to eat. A lovestruck Raptor falls for a T. rex.

Raptors snatch dino babies, but the babies fight back! A volcano sends lava flowing everywhere. The T. rexes prove they're the mightiest dinos of all.