The first episode features a Triceratops story, focusing on the life and challenges of this dinosaur species. It includes scenes of the Triceratops' environment and interactions, with detailed CGI and narrative transitions between paleontologists and the dinosaurs themselves.

The main dinosaur character in episode two, 'River Dragon,' is a male Spinosaurus named Sobek. The plot follows Sobek and his four offspring as he tries to feed and protect them in a Cretaceous savannah environment with large rivers and lagoons, showcasing family dynamics and survival challenges.

One notable interaction includes a male Liopleurodon, a large marine predator, snatching an Eustreptospondylus from the shore. The Liopleurodon also frightens off Hybodus sharks pursuing a mother Ophthalmosaurus, which it then partially eats. Additionally, Eustreptospondylus fights over a turtle carcass and preys on Rhamphorhynchus pterosaurs that come to eat horseshoe crab eggs.

In the Spinosaurus episode, the juveniles are portrayed as 'dangerously cute,' with the story focusing on a young adult male Spinosaurus raising them. The episode highlights the challenges of parenting and survival in a realistic paleoenvironment, with detailed animation showing the juveniles' growth and vulnerability.

Paleontologists appear frequently throughout the series, with scenes cutting between their fieldwork and the dinosaur narratives. They are shown discovering fossils, analyzing trackways (such as those of Edmontosaurus), and providing scientific context. However, some reviews note that these segments can feel repetitive and sometimes detract from the dinosaur storytelling.