THE ALIEN SAGA

In the year 2089, Dr. Elizabeth Shaw and Dr. Charlie Holloway uncover a series of ancient star maps on Earth, pointing to a distant moon, LV-223. They interpret the maps as an invitation from an advanced race they call the "Engineers"—beings they believe may have created humanity.

Funded by the powerful Weyland Corporation, Shaw, Holloway, and a crew of scientists and explorers embark on a voyage aboard the spaceship Prometheus to seek answers about humanity's origins.

Upon arrival at LV-223, the crew discovers structures and artifacts indicating the Engineers' advanced civilization. As they begin to explore, they encounter remnants of the Engineers’ technology and something far more unsettling—a strange black substance that reacts unpredictably to human contact.

As the team begins putting the pieces together, the crew's android, David, begins acting strangely. Without the rest of the crew noticing. David purposely infects Dr. Holloway with the black substance, and disappears into the alien structure. The infection leads to the birth of a horrifying alien creature. Dr. Elizabeth Shaw must figure out a way to defeat it and escape with her crew.

Weyland's founder had been on the Prometheus in secret, and was desperately searching for a way to live forever. He had given David the order to pursue the technology of the Engineers at any cost if it would help him extend his life.

Weyland is able to wake an Engineer from stasis, and tries to negotiate with it to get what he wants. The Engineer coldly kills him without a word, and attempts to use one of its spacecraft to leave the planet.

Elizabeth Shaw is able to pit the monstrous alien against the Engineer and narrowly escapes aboard an Engineer vessel with David, leaving the wreckage behind on LV-223.

In the year 2104 the Covenant, a colonial vessel carrying thousands of colonists and embryos, is on a mission to a distant planet, Origae-6, with the aim of establishing a new human settlement. The ship is monitored by Walter, an advanced android model that superficially resembles David.

After a catastrophic event damages the ship and awakens the crew prematurely, they intercept a mysterious transmission from a nearby planet. Though it wasn’t part of their original mission, this planet appears surprisingly ideal for human habitation and seems closer than their intended destination. Captain Oram decides to investigate, despite the concerns of Daniels, the ship’s terraforming expert.

As the crew lands on the unexplored planet, they discover an environment that appears lush and safe. However, they quickly encounter strange, unsettling signs of life. While navigating the alien threats, the crew encounters David, the android who vanished along with Dr. Elizabeth Shaw years earlier on the Prometheus mission. His presence and actions raise further mysteries about the dangers lurking on the planet and the fate of the Engineers.

David tells the crew that, upon his and fellow Prometheus survivor Elizabeth Shaw's arrival at the planet, their ship accidentally released a pathogen that annihilated all fauna on the planet and that Shaw perished when the ship crashed.

David later reveals that the aliens are a result of his releasing and experimenting with the pathogen to produce new lifeforms, and tricks a crewmate into being attacked by a facehugger, which later bursts from their chest as a new form of creature, the Praetomorph. The rest of the crew attempts to escape Origae-6 without succumbing to David’s “perfect organisms.”

As the escaping crew falls into stasis while drifting away from the planet, they realize that their loyal android Walter has been replaced by the identical looking David, who will have free reign over the Covenant as it floats towards its destination for a few more years.

In the year 2122, The commercial space tug Nostromo is returning to Earth with a seven-member crew in stasis. The ship's computer, Mother, detects a transmission from a nearby planet and awakens the crew. Following company policy to investigate transmissions indicating intelligent life, they land on the planet.They discover that the transmission comes from a derelict alien spaceship, where they find the remains of a large alien with a hole in its torso. Later, Mother deciphers part of the transmission, which warrant officer Ripley determines to be a warning message.

Executive officer Kane discovers a chamber containing hundreds of large eggs. When he touches one, a spider-like creature springs out, penetrates his helmet, and attaches itself to his face. Unconscious Kane is carried back to the Nostromo. As the acting senior officer, Ripley refuses to let them aboard, citing quarantine regulations, but Ash, the science office, overrides her.

Ash attempts to remove the creature from Kane's face. He stops when he discovers that its highly corrosive acidic blood could harm Kane and potentially damage the ship's hull. The creature eventually detaches itself and dies. After the crew returns to space, Kane awakens with some memory loss but otherwise seems well. During a final crew meal before returning to stasis, he suddenly chokes and convulses. A small alien creature bursts from his chest, killing him, and escapes into the ship.

The creature quickly grows to full size and skulks throughout the ship, picking off the crew one by one until only Ripley remains.

While accessing Mother, Ripley discovers that the crew was awoken and directed to the planet because the company secretly ordered Ash to return with the alien for study, and to consider the crew expendable. She confronts Ash, who tries to kill her. In the scuffle, Ash's head is knocked loose revealing him to be an android.

Ripley sets the Nostromo to self-destruct and escapes into the ship’s shuttle. As she is preparing for stasis, she realizes that the creature has slipped into the shuttle with her. Ripley outwits the alien, jettisoning it out into space. She puts herself into stasis, hoping that she will make it home.

In 2142, a Weyland-Yutani space probe investigated the wreckage of the USCSS Nostromo, destroyed two decades prior. The probe collects a large cocoon and departs for a research space station. Upon arrival, scientists open the cocoon, revealing the xenomorph that killed most of the Nostromo's crew.

Over five months later, at the colony Jackson's Star on LV-410, Rain Carradine works and lives with her adoptive brother Andy, a malfunctioning android reprogrammed by Rain's deceased father. After her original work contract is forcibly extended by Weyland-Yutani, Rain's ex-boyfriend Tyler persuades her to join an expedition to a derelict spacecraft to retrieve cryostasis chambers that will allow them to escape to the planet Yvaga. Andy's ability to interface with the onboard computer system is crucial for the expedition.

While retrieving fuel for the stasis chambers, they accidentally disable the temperature control, releasing cloned facehuggers and triggering a lockdown. To override the lockdown, Rain installs a chip from a damaged android, Rook, into Andy, granting him access to the station while updating his software. This changes his "prime directive," making him loyal solely to Weyland-Yutani.

Awakened xenomorphs hunt the scavengers as they try to escape the spacecraft with their prize. Rain must rely on Rook’s knowledge of the ship and the creatures, but also needs to find a chance to switch her brother back to his old self.

Andy finds samples of a compound called Z-01, which Rook refers to as "Prometheus Fire", which scientists extracted from the xenomorphs and combined with human DNA to "perfect" humans. One of the scavengers, Kay, had become badly injured and uses the substance to rapidly heal herself in order to survive.

As Rain and Andy prepare for their trip to Yvaga, Kay gives birth to a cocoon containing The Offspring, which rapidly grows into a mutated human–xenomorph hybrid. The hybrid incapacitates Andy and kills Kay, but Rain ejects the creature into LV-410's rings after a struggle. She places Andy in a cryostasis chamber and records an audio log about their hoped-for arrival at Yvaga before entering cryostasis herself.

In the year 2179. Ellen Ripley has been in stasis for 57 years aboard an escape shuttle after destroying her ship, the Nostromo, to escape an alien creature that slaughtered the rest of the crew. She is rescued and debriefed by her employers at the Weyland-Yutani Corporation, who are skeptical of her claim about alien eggs in a derelict ship on the exomoon LV-426, now the site of a terraforming colony.

After contact is lost with the colony, Weyland-Yutani representative Carter Burke and Colonial Marine Lieutenant Gorman ask Ripley to accompany them to investigate. Still traumatized by her alien encounter, she agrees on the condition that they exterminate the creatures. A dropship delivers the expedition to the surface of LV-426, where they find the battle-ravaged colony and two live alien facehuggers in containment tanks, but no bodies or colonists, except for a traumatized young girl nicknamed Newt.

As the marines attempt to infiltrate the colony further, Ripley discovers that Burke ordered the colonists to investigate the derelict spaceship containing the alien eggs, intending to profit by recovering them for biological weapon research. In the chaos of trying to reveal this to the rest of the squad and defend themselves from the encroaching aliens, Newt is separated from Ripley and taken by the creatures.

Ripley refuses to abandon Newt and arms herself before descending into the processing station hive alone to rescue her. During their escape, they encounter the alien queen surrounded by dozens of eggs, and when one begins to open, Ripley uses her weapons to destroy them all. Pursued by the enraged queen, Ripley and Newt escape moments before the station explodes, consuming the colony in a nuclear blast.

Aboard the ship, they are ambushed by the queen, who stows away in the dropship's landing gear. The queen advances on Newt, but Ripley fights the creature with an exosuit cargo loader and expels it through an airlock into space. Ripley and Newt then enter hypersleep for their return trip to Earth.

In 2179, immediately after the events of Aliens, an egg hatches aboard the Colonial Marine spaceship Sulaco, releasing a facehugger. A fire starts and the ship's computer launches an escape pod containing Ellen Ripley in stasis. The pod crash-lands on Fiorina "Fury" 161, a foundry and maximum-security correctional facility inhabited by male inmates with a genetic predisposition for antisocial behavior. The inmates recover the crashed pod and its passengers. The facehugger approaches inmate Thomas Murphy's dog, Spike.

Ripley is awakened by Clemens, the prison's chief medical officer, who informs her that she is the sole survivor. The prison warden, Harold Andrews, says that her presence may have disruptive effects. Ripley finds and re-activates the android that accompanied her on the Sulaco, who, before asking to be permanently shut down, confirms that a Facehugger came with them to Fiorina, under knowledge of the Weyland-Yutani Corporation.

Ripley informs Andrews of her previous Xenomorph encounter. and suggests everyone work together to hunt down and kill it. However, the facility is without weapons; their only hope is the rescue ship being sent for Ripley by Weyland-Yutani. The Alien ambushes Ripley and Clemens in the prison infirmary, killing him, and cornering her. However, it mysteriously spares her and retreats.Ripley scans herself using the escape pod's medical equipment and sees the embryo of an Alien Queen growing inside her. Upon this discovery, she realizes that Weyland-Yutani plans on capturing the alien incubating inside of her in hopes of turning it into biological weapons.

The Weyland–Yutani team arrives, and tries to persuade Ripley to undergo surgery to remove the Alien Queen embryo, claiming it will be destroyed. Ripley refuses and steps back onto a mobile platform, positioned over the furnace. Ignoring pleas to give them the embryo, Ripley throws herself into the furnace, holding captive the infant queen as it erupts from her. The facilities are closed down.

In the year 2379, military scientists aboard the space vessel USM Auriga created a clone of Ellen Ripley, designated Ripley 8, using DNA from blood samples taken before her death. The Xenomorph queen's DNA has been combined with Ripley's, resulting in the clone growing up with an embryo inside it. The scientists extract the embryo, raise it, and collect its eggs while keeping Ripley 8 alive for further study. As a result of the Xenomorph queen's DNA, the clone possesses enhanced strength and reflexes, acidic blood, and a psychic link with the Xenomorphs, making her more empathetic toward them than the humans she encounters. Additionally, the Xenomorph's genetic memory allows the clone to retain some of Ripley's memories.

A group of mercenaries arrives at the Auriga on their ship, the Betty, delivering several abducted humans in stasis. The military scientists use the humans as hosts for the aliens, raising several adult Xenomorphs for study. The Betty crew soon encounters Ripley 8 and attempts to kill her, suspecting that Ripley 8 may be used to create Xenomorphs, but the creatures have already been cloned. The mature Xenomorphs escape confinement by killing one of their own and using its acidic blood to burn through their enclosures.

As the ship falls into chaos, military scientist Dr. Wren reveals that the ship's default command in an emergency is to return to Earth. Realizing this would unleash the Xenomorphs on Earth, Ripley 8, the mercenaries, and Wren decide to head for the Betty and use it to destroy the Auriga.

Ripley 8 is taken to the Xenomorph nest, where she finds Gediman alive and partially cocooned. The Xenomorph queen, having developed a uterus due to her genetic contamination with Ripley 8, gives birth to a Xenomorph with overtly human traits. Unable to bond with the queen, the hybrid Xenomorph recognizes Ripley 8 as its mother and kills the Xenomorph queen. Ripley 8 takes advantage of the distraction to escape and makes her way to the Betty.

Using her acidic blood, Ripley 8 melts a hole in a window and pushes the hybrid towards it. Ripley 8 tearfully watches as the decompression violently eviscerates the creature through the hole and blows its pulverized remains out into space.