Fossil enthusiast Feng Ren accidentally transmigrates and becomes a young Allosaurus in the late Cretaceous, 85 million years ago, falling into a prehistoric hell where more than 90% of hatchlings die. With no magical cheat or anthropomorphic dialogue, he must rely on his knowledge of prehistoric life and the Predator’s Mark, which grants only meager enhancements after he kills powerful enemies. He has no choice but to follow the most primitive laws of survival.
The moment he hatches, he faces a fight for his life. He forms a band of five brothers with the steady Juyan, the headstrong Jifeng, the resilient Jiandun, and the keen-eyed Youying. They entrust their lives to one another through roars, body language, and scent markings. They roam river valleys hunting lizards, then hunt adult herbivorous dinosaurs; they turn the tables on Deinosuchus despite being outmatched, then fight to the death in a canyon against a ten-meter-long Allosaurus tyrant; they face off against hundreds of ceratopsians on the plains, hunt the giant land-dweller Alamosaurus, then take on the tyrannosauroid monster Zhuchengtyrannus in the far north.
There are no world-shattering powers, only careful tactics at every turn; no lonely path to supremacy, only bonds between brothers who share life and death. Across five hundred chapters, the story strictly follows paleontological science and recreates the most authentic Cretaceous ecosystem, chronicling the legendary journey of five Allosaurus from frail hatchlings to conquerors of the Laramidia continent, at the cost of blood and bone.