The movie opens on earth, where we see a man-alien ingesting a liquid that destroys his body. Dissolving in the water, we are opened to the title with the same style as "Aline"; the letters appearing one line at a time. From here we jump to the main part. We see two archeologists finding artifacts(map) that are similar to other civilizations separated by thousands of years. Of course being the style of movie it is, the people soon realize it's an invitation and decide that they must travel to it. Enter LV-223.

One will find that the planet-or moon-is eerily similar to the one that is seen in '79 Alien, however, this is not the case as it is part of the same system. So with this in mind we continue along, with the crew descending upon the planetoid. Computer readouts state the planet having some viable levels of oxygen, but with the unfortunately high amounts of carbon dioxide; death in minutes. Knowing this, the crew scour the rock to a set of caves(face like structure) where the jars are found, along with a space jockey who has lost his head. A crew member takes a sample of said jars and bring it upon the ship. During this time the head is also brought on board. The head is not dead as it is brought back to life but frozen so afterwards. The member of the crew who brought aboard the jar has now infected a fellow crew member with a small sample. The infected member goes through horrible symptoms before being burned to death. The goo is now known to be a bio-weapon of sorts.

With samples from the head and jar, they find that the goo has the same genetic makeup as human DNA, therefore they are named the creators of *us. With the ability to create life- speculated intentions. There is also the possibility that it was engineered as a weapon with disastrous fallout. In any case the DNA matches and this is where "we" have come from. The infected person inadvertently infects his wife and she gives birth to a face-hugger-ish creature.

the crew is killed by a thing(watch the movie) and is killed in turn. 4 surviving crew go to the ship(cave) and awaken the engineer. It turns belligerent and kills 3/4 of them. We then see the iconic scene of the chair rising from the bottom, as the engineer sits in it and prepares to leave for earth. The remaining crew of Prometheus crash into the ship and it falls to the ground. One more crew member is killed until there is one person left. she records the message and sets off to find their home world.

Things are missing from this as you must watch the movie.