David (Jake Gyllenhaal), Miranda (Rebecca Ferguson), Luo Li (Ryan Reynolds), Xiu (Hiroyuki Sanada) and Xiu (Ariyon Bakare) are astronauts working on the same spacecraft. By chance, they discovered an immature life form on Mars. Hugh brought the life form back to the laboratory, but what everyone didn't expect was that this small cell began to grow rapidly under the stimulation of the outside world. As the life form grew up, the development of the situation began to lose control. The life form showed a powerful attack power and superb intelligence, killing several crew members one after another. Not only that, David discovered that the life form seemed to want to land on the earth with the spacecraft, and once its conspiracy succeeded, humans on the earth would inevitably face a catastrophe.