A modern youth travels to the Cretaceous period and turns into a Tyrannosaurus Rex, struggling to survive in the prehistoric wilderness and barely setting up a valley camp. Lin Xiaoxing, a girl who has just finished the college entrance examination, is pulled into ancient times by a mysterious force while complaining about animated dramas, accidentally meets Dagang, and awakens a daily lottery system. The team gathers with the Cantonese-speaking Pterosaur Abiao, the soft and cute Ceratosaurus, and also meets Tiezhu, an adult Tyrannosaurus Rex who is also a time-traveler. The group relies on various lottery props to break through dangerous situations, with a magical girl transforming to fiercely battle Velociraptors, starting a mecha but encountering an electric leakage accident, opening up a prehistoric survival adventure full of continuous laughter.