"Kyōryū Bōkenki Jura Tripper" is a fantasy adventure anime set in a world where dinosaurs and humans coexist. The story centers on Yuu, a young boy who is transported to the mysterious land of Jura alongside his sister, Rii, and their friend, Kakeru. This world is filled with lush landscapes, ancient ruins, and, most notably, sentient dinosaurs known as "Dinosoids," who possess unique abilities and intelligence. The trio quickly learns that they are not the only humans in Jura, as other individuals from their world have also been drawn into this strange realm.

The narrative unfolds as Yuu and his companions embark on a journey to uncover the secrets of Jura and find a way to return home. Along the way, they encounter various factions, including the militaristic Giganotosaurus Empire, which seeks to dominate Jura using advanced technology and the power of Dinosoids. The group also meets allies, such as the peaceful Dinosoids who oppose the Empire's tyranny, and other humans who have adapted to life in Jura.

Central to the plot is the discovery of ancient artifacts called "Jura Stones," which hold immense power and are key to understanding the connection between humans and Dinosoids. Yuu and his friends must navigate the dangers of Jura, including hostile Dinosoids, treacherous terrain, and the Empire's relentless pursuit, while piecing together the mystery of the Jura Stones and their own role in this world.

The characters are driven by their individual motivations: Yuu seeks to protect his sister and friends, Rii demonstrates a strong sense of empathy and curiosity, and Kakeru provides a pragmatic and resourceful perspective. Their interactions with the inhabitants of Jura, both human and Dinosoid, highlight themes of cooperation, survival, and the clash between technology and nature.

As the story progresses, the group uncovers deeper layers of Jura's history, including the origins of the Dinosoids and the true purpose of the Jura Stones. The narrative builds toward a climactic confrontation with the Giganotosaurus Empire, where the fate of Jura and its inhabitants hangs in the balance. Through their journey, Yuu and his companions grow stronger, forge lasting bonds, and ultimately play a pivotal role in shaping the future of this enigmatic world.