In the vast universe, Ripley's spacecraft did not return to Earth. The spacecraft suddenly had an accident midway, and the low-temperature dormant cabin broke away before the mother ship exploded and fell on a cold and dark planet. Except for Ripley, the other crew members died, and the broken "bishop" was thrown into the garbage dump. Ripley recovered her health under the treatment of a doctor, and knew from him that this was Fiona's "Nemesis" planet 161, an abandoned mine on the earth, and it had become a space prison for prisoners.
Now there are 25 double-chromosome criminals under control. They are led by Huoshi and have a god of common faith, so that they will not make trouble. However, with the arrival of Ripley, the prisoners seemed to have a commotion, so when a person was mysteriously killed, the management thought it was the prisoner who had an accident. But Ripley had an ominous premonition. She retrieved the computer core board from the spacecraft and found the bishop, and learned about the flight record through the bishop's program.
Sure enough, the alien intrusion caused the spacecraft to have an accident, and now it followed the cryogenic chamber to the Nemesis 161. The managers didn't believe in everything Ripley said about the alien, but the fear immediately became a reality. The alien had grown into it, and it began to appear everywhere, killing people at will. However, there was not a single weapon that could be used to deal with the aliens in the mentally controlled prison, and soon more than half of the people were killed.
Ripley felt unwell. After the computer's biological test, something terrible happened: there was also a female alien growing in her body. The company received the report and sent someone to it. The news made Ripley more nervous. She finally persuaded people not to wait passively for the company to come, because the company only wants aliens, not the safety of others. After a huge sacrifice, the alien was finally blown to pieces after cooling at a high temperature. Facing the dispatch team that arrived, Ripley did not fall into the conspiracy. She grabbed the alien form that had been broken and threw it into the high-temperature furnace to die with the alien.
