As the fourth installment of the "Alien" series, the plot of "Alien 4" is also closely related to the first three.

In the first part, the heroine Ripley and others return to Earth in the "Nostromo" commercial haulage spacecraft, but on the way, they receive a mysterious signal on an asteroid, and then they go to the asteroid to find the source of the signal.

On Little Nova, they discover an alien ship that has crashed, and in the alien ship, the crew is attacked by an alien facehug. The others brought the man back to the ship, and they found that the hugger was dead. They thought that was the end of the matter, but the hapless crew member had an alien embryo in his body.

Subsequently, the xenomorph hatchling broke open the host's chest, and the crew began to engage in a fight with the xenomorph.

After a battle, most of them were killed by the Xenomorphs, leaving only Ripley herself.

Ripley blows up the ship and escapes with the space shuttle, but only when Ripley prepares to go to sleep, she realizes that the alien has been hiding inside the shuttle.

Ripley used cold air to force the alien out, and then opened the hatch and threw the alien into space, and the battle was finally over, Ripley finally went into hibernation, and the first part officially ended here.

Ripley was finally found by rescue teams after 57 years of hibernation, and was immediately put on standby.

When she wakes up, she finds that everything she once knew is long gone, including her own daughter, who had died two years ago. And the asteroid they discovered back then has now become a human colony, and they have never found an alien in 20 years.

It was precisely because there was no evidence of the existence of the alien that the investigation team believed that Ripley had blown up the spaceship that year, thought it was a fiction, revoked Ripley's pilot license, and asked her to undergo psychological treatment.

Then, the supporting characters began to die again.

The colony's inhabitants discovered the alien ship and began researching face-hugging insects and xenomorphs, but were eventually killed by the xenomorphs, leaving only a little girl alive.

In order to find out what happened to the colony, the colony's investment company organized a team of marines to investigate the colony and persuaded Ripley to go with him.

Originally, Ripley didn't want to go back to that place, but in the end, she accepted the company's invitation and decided to make a break with the alien. Of course, accepting the invitation is premised on the fact that the company must completely eliminate the aliens there, not study them.

Then the group drove the spaceship to the planet again, and at this time, the human colonies had become the base camp of the aliens.

After entering the colony, the investigation team naturally fought with the aliens, and a large number of personnel were killed by the aliens.

In the end, Ripley, a marine, and a cyborg boarded the ship, and in order to rescue the little girl who was captured during the escape, Ripley rushed back to the colony single-handedly.

Using the tracker, Ripley finds the alien's lair, where she rescues the trapped little girl.

However, Ripley then walked into the Alien Queen's room, where there was a huge Alien Queen and countless Alien Eggs, surrounded by other Aliens.

Ripley shows the Alien Queen the power of her flamethrower, and threatens her with the threat that she will burn the nearby Alien eggs if she is attacked, and the Alien Queen compromises with her and lets them go.

However, after getting out of danger, Ripley immediately destroyed the alien queen's lair with a flamethrower.

In the flames, a large number of Xenomorph eggs are burned, and the angry Xenomorph Queen leaves her womb to hunt down Ripley, but the cyborg returns at this time, even though she saves Ripley and the little girl, who detonate a nuclear bomb and destroy the Xenomorph's lair.

Of course, the story will not end up with a happy ending, as the Alien Queen gets mixed up with the spaceship and seriously injures the cyborgs. Ripley pilots the loading and unloading machines to fight the Alien Queen, and repeats her trick by opening the ship's hatch and throwing the Alien Queen into space.

The last survivors, three people, including Ripley, plus a cyborg, finally set out on their way home.

However, Ripley's luck is really not good, and it seems that her life is always inseparable from the aliens.

None of them noticed that there was a facehug on the ship, because the corrosive nature of the facehugger destroyed the ship, which directly caused the ship to crash on a planet, and everyone except Ripley died because of the ship's crash.

It's a prison planet where the people of this planet find the crashed spaceship and rescue Ripley.

Ripley finds traces of aliens in the wreckage of the ship, and she suspects that there may be alien embryos in the bodies of other people in the ship, so she tries to get the prison doctor to perform an autopsy on the little girl. Although nothing was found, Ripley insisted on bringing everyone's corpses alive just in case.

Ripley did not expect that although none of the corpses in the spaceship were parasitized by the aliens, the facehuggers attacked a cow on the prison planet, and soon after, an alien resembling a beast was born from the corpse of the cow.

Soon after, a prisoner encountered an alien while cleaning the ventilation ducts, and his face was sprayed with acidic liquid, and he stumbled and was shattered by the ventilation duct fan.

This incident did not attract much attention from the prison warden, he was only because, it was only because this long-time male-only planet suddenly came to Ripley, so it caused the prisoners in the prison to be impetuous.

In fact, Ripley never gave up on finding the truth about the ship's crash, finding the ship's black box and finding the mangled cyborg in the garbage heap, through which she finally learned that the ship caught fire and eventually crashed due to the activity of the facehug.

At the same time, the alien attacks the prisoner again, two of the three prisoners are dead, and the last one is covered in blood, and he is crazy to say that it was a dragon or something that killed the two men, but because he was a murderer before, the warden did not believe him, and also ordered him to be tied up.

Ripley tells the warden about the alien, but the warden doesn't believe her and puts her in the infirmary.

It wasn't until the warden was directly captured by the alien that appeared on the ceiling in front of the eyes of many prisoners, that everyone finally believed Ripley's words and obeyed her arrangement to deal with the alien.

After some sacrifices, Ripley and her team managed to drive the alien out of the ventilation duct with fire, and eventually locked the alien in a sturdy warehouse with only one exit.

After successfully trapping the Xenomorph, Ripley sends a communication to the company and asks to kill the Xenomorph, but this is not allowed, and the company sends a team to deal with the Xenomorph.

However, before the people from the company came, the man who had been thought to be a madman was completely insane.

He regarded the alien as his god, and after successfully escaping, he killed the man guarding the door of the warehouse, but the god in his eyes immediately killed him and escaped from the warehouse.

The alien's escape caused panic among the group, and they finally decided to lure the alien into the furnace and fill it with boiling lead to kill the alien.

At this time, Ripley had already discovered that there was an alien parasitic in her body, and she was also an alien queen with reproductive ability, which was why this alien did not harm her. Originally wanting to die, she was persuaded by Dylan, who was quite dignified among the prisoners, and joined Dylan's plan to kill the alien.

After some sacrifices, even after Dylan died, they managed to drown the Xenomorph with boiling hot lead water, but this did not kill the Xenomorph, and the Xenomorph jumped out of the lead water.

At the last moment, Ripley turns on the water jet, and the alien's body can't adapt to the temperature of the distance and explodes, and the alien finally dies.

At this time, the people of the company also appeared, and in order to prevent the alien queen in her body from falling into the hands of the company, which would lead to the destruction of the world, Ripley finally jumped into the furnace and completely destroyed herself and the alien queen in her body.

Okay, after a lot of nonsense, I finally started the movie that Ye Qianhu is going to enter this time, that is, the plot of "Alien 4".

Two hundred years after Ripley jumped into the furnace, the military set up a sky research station in a spaceship to study the aliens, hoping to successfully train them into effective weapons.

They found a blood sample that was frozen and preserved during Ripley's examination, and used the blood to clone Ripley and the Alien Queen in her body.

The heroine is the eighth clone, and the clones before her are all flawed, and their bodies show alien characteristics, and the closer Clone Seven only has the first half of a human life, and the rest is still alien.

After successfully replicating Ripley, that is, the experimental problem numbered eight, the Alien Queen was also copied and successfully conceived in Ripley's body.

Researchers then removed the Alien Queen from Ripley's body and began breeding Aliens.

And after giving birth to the Alien Queen, Ripley was not discarded by the researchers. Because of the fusion of genes in her body and the genes of the Alien Queen, Ripley shows strong learning ability and strong physique, and her body also has some characteristics of the Alien, such as her blood is also strongly corrosive.

Although the researchers were pleasantly surprised by Ripley's performance, the station's administrator, General Perez, did not like Ripley, as Ripley had been working hard to eliminate the aliens during her lifetime, and he did not want Ripley to return to her old job. However, Ripley was preserved as a by-product.

In order to allow the aliens to breed, Perez buys the looted humans from the mercenaries and makes them parasitize the face-hugging insects, thus giving birth to the aliens with their own bodies.

At the beginning of the plot, General Perez and the mercenaries who did it drove the Betty smuggling ship into the research station, only this time there was a new member of them who wanted to destroy the cyborg Curr who was studying on the opposite sex in the research station.

Cole wants to kill Ripley, who gave birth to the Alien Queen, but is disappointed to find that the Alien Queen has been born.

Cole is then captured and leads to a fight between the mercenaries and the military guards in the restaurant, which the mercenaries win.

On the other side, in the cage where the Xenomorphs were being held, two Xenomorphs killed the third, burned through the floor with its corrosive blood, and managed to escape, and then began the massacre of the ship's personnel.

After discovering that the alien had escaped, the evacuation procedure began in the ship, during which General Perez was killed by the alien.

Ripley joins up with the mercenaries and tries to escape from their Betty spaceship, during which they find that the ship is flying back to Earth, in order to prevent the Earth from being destroyed by the aliens in the ship, Cole links the ship's management system, and after finding that the ship cannot be made to explode, she changes the ship's program so that the ship will be destroyed by impact.

However, before they can escape, they will enter the Betty to escape, otherwise they will also be destroyed with the ship.

After being chased by the Aliens and traps, the last few escaped back to the Betty, but Ripley was captured by the Alien Empress on the way.

In the Alien Empress's lair, Ripley witnesses the birth of a special Xenomorph.

Because of the integration of Ripley's genes, the Alien Queen at this time gained the human reproductive system. There is no longer a need to lay eggs, and there is no longer a parasitic process, and the Alien Empress will directly produce the Alien.

An alien that is completely different in form from the past has been born, and it is also capable of reproduction, and it is similar to the reproductive ability of humans, but it is also more powerful than the aliens of the past.

Perhaps because of the mixture of genes and genes of the opposite sex, the new alien believes that Ripley is his mother and is very close to her. And the Alien Empress who gave birth to it, it killed the Alien Empress very easily after birth.

Taking advantage of the new xenomorph's attention from the rest of the lair, Ripley escaped, eventually catching up with the Betty spaceship, which was about to take off.

However, in the end, the new alien also entered the spaceship.

Ripley threw her own blood on the glass of the ship's hatch, the blood corroded the glass, and the force of distance sucked the alien into the spaceship's gap due to the difference in pressure inside and outside the ship, and eventually shattered it and sucked it into space.

Ye Qianhu is going to participate in "Alien 4", and his mission Lilith has told him to clear all the aliens in the research station, which means that there is a very high probability that he will fight the aliens head-on. Perhaps it was because he felt that the difficulty was not easy this time, so Lilith gave him a base reward of 150 energy points for completing the task.

Thinking of the alien, Ye Qianhu's first impression was disgusting, it seemed that this creature would always be associated with something like slime.

The social structure of the xenomorphs is much like that of the hermetically sealed, with a fertile empress and the other xenomorphs serving the same responsibilities as worker bees, providing the empress with things and parasites for reproduction.

Aliens are creatures whose sole purpose is to survive, they have no distractions, and everything they do is to survive, although their survival will often lead to the destruction of other creatures.

Also in order to better survive, the alien has a strong combat ability. Their body shells are hard, they have great strength and flexibility, and of course, one of their most disgusting abilities is the extreme corrosiveness of their blood.

In the movies, neither steel nor glass or anything like it can resist the corrosive nature of alien blood.

Of course, this is not to say that they are invincible in this corrosive nature, in fact, there is another species that can almost be called their natural enemies, and that is the Predator.

And the Predator's weapons, Ye Qianhu happens to have some!