During this period, humans have moved to the planet where the alien is located. When Ripley knew about it, she immediately reported the alien situation on the planet to the authorities, but the authorities believed that she was either mentally abnormal or lied. Seeing that the authorities ignored her words, Ripley determined not to get involved in anything related to the alien.
Sure enough, the people who settled on the planet where the alien was suddenly disconnected from the earth. Only then did the authorities notice what Ripley had reported earlier and decided to send an army to rescue her. Ripley was persuaded to participate in the rescue operation, and another round of fighting began.