<p>When Ellen Ripley finally returns to Earth, she learns that the planet LV-426?now called Acheron?has been colonized. But LV-426 is where Ripley and crew of the Nostromo found the original Xenomorph?the killing machine known as the Alien. The colony known as Hadley's Hope is where a group of colonists?protected by the Colonial Marines?seek to terraform the inhospitable planet, and to uncover Acheron's unknown resources. Two of the residents are...