ALIEN 3 is based on the movie sequel of the same name. Ellen Ripley, the main character of the Alien series, is in cryo-sleep aboard the space ship Sulaco. Unfortunately, an alien or two has stowed away on the Sulaco, and wreaked havoc within the ship. Thus, it crashes on the prison colony planet Fiorina 161. Ripley and the unarmed prisoners have to figure out a way to survive the alien who terrorizing the colony until help arrives.