A newly formed island, born from an earthquake, beckons five dinosaur friends on an adventurous expedition. The Fivedinos, a group of curious young dinosaurs, construct a raft to explore this uncharted territory. Their exploration quickly turns perilous as they encounter and must evade the island's hostile inhabitants, forcing them to rely on their wits and teamwork to survive the unexpected dangers.

The premise sets up an exciting adventure for young readers, focusing on exploration and the challenges of an unknown environment. The narrative likely emphasizes the Fivedinos' resourcefulness as they navigate the dangers of the island. The story appears designed to engage children with themes of friendship and overcoming obstacles in a prehistoric setting. This adventure is expected to be fast-paced and filled with the kind of peril that appeals to a younger audience.