After traveling to the Cretaceous, Xu Kun actually turned into a swordfish. In the shallow sea known as the Hell Aquarium, the competition for survival was extremely fierce, and various huge prehistoric predators swam in and out, killing cruelly. The game continues to play out. Under the huge pressure to survive, Xu Kun uses his gene editing ability to evolve from a sub-adult body and finally transform into a titan. At this time, a catastrophe sweeping the world is also coming...