Quick recap
In 2142, a Weyland-Yutani probe recovers something from the Nostromo wreckage. On the mining colony of Jackson's Star, orphan Rain has her work contract extended against her will. She joins her ex Tyler, his pregnant sister Kay, Bjorn, Navarro and Andy, an android her father reprogrammed to be her brother, to loot cryopods from an abandoned station, the Renaissance. There they release facehuggers. Andy gets a chip from the station's android, Rook, and starts obeying the company. Rook reveals the station was studying the Nostromo's Xenomorph and made a serum, Z-01. Navarro, Bjorn and Tyler die. Kay injects the serum and gives birth to a monstrous hybrid, which Rain ejects into the planet's rings. Rain and Andy go into hypersleep.

