The anime series take dinosaurs as the core and tell the science fiction adventure stories of ""past, future and present"" in the city of Zigong in three different spacetimes. Fascinating stories show the protagonists' moral concern for the Earth and life community, conveying the values of humanity, fraternity, dedication, and the constant salvation of the people. It revolves around the adventures of the Dinosaur Defenders in prehistoric past ： In order to save dinosaurs and protect the past, present and future of Zigong, they battled against the dark forces of Star's Army. and ends in a spectacular finale with Star defeated and dead but the dinosaurs' world in ruins and the portal closing (presumably) forever...