While Dad and Uncle Ravi play football in the park, Dex and Kayla try to figure out if the T. rex will eat other predators by taking turns becoming dino bait in the form of a Velociraptor, a Megaraptor, and, finally, a T. rex itself.

When Dana visits home, Kayla feels left out when Dex chooses to complete his dino experiment with his sister instead of her. Meanwhile, the dino-loving siblings try to figure out why certain Dreadnoughtus group together out of their large herd.