Took me about an Hour and a Half to type but I did it! Read if you dont wanna watch the movie or something. The whole point of the ship was for it to travel to a planet called Tanis. This planet can sustain human life so the ship is like a giant Noahs ark that is filled with test tubes of, I'm assuming, sperm and eggs of all the Earths species. Tanis is very very far away so the crew on the ship are split up into groups/shifts. These shifts last YEARS. i.e. Ben Foster and Dennis Quaid's characters were asleep for 8 years. The pods you see them waking up in are hibernation chambers that also inject your with an "Adaptation Excellorator" that will allow the humans to adapt to Tanis when they arrive. The Monsters on the ship are actually mutants that look exactly like the ones from The Decent. The goal on the ship was to restart the Generator basically on the other side of the ship. Ben Foster wakes up first, then he wakes up Quaid, they are stuck in a room by themselves with no way out because the doors are air tight and the power is off. Foster has to climb through a vent to get out leaving Quaid in the room alone with only a communication device to contact Foster. Foster has some trouble in the tight vents but manages to get out. With barely any light, Foster travels the ship to find a woman trying to open a door, when she see him, she attacks. This turns out to be Traue. They hear screaming and roaring coming down the hall, she vanishes and Foster walks away to find, what looks like someone standing. When he gets closer he sees that it is a body hanging from the ceiling and half eaten. Here we have our first encounter with the mutants. Foster runs away and hides while seeing the mutant pull away a corpse. Foster now remembers that he had a wife and that she came on board the ship since families and such were allowed to come. This makes him want to find her. Quaid trys to make Foster reconsider but he keeps going to find a security room. In this room he grabs a device that shoots a plasma like beam. Foster keeps moving through the ship and you see someone with a sword following him. Foster moves to find another hanging body and thinks that he is going around in circles. He moves closer to the body to find out that the person is alive and is Reedus' character. Reedus is scared to death and once Foster cuts him down Reedus covers himself with oil saying its to keep the smell away. Reedus says that he must run away now before its too late. The mutants come and they both run. Reedus hides in some compartment while Foster climbs up and over a wall. Reedus gets taken and killed by the mutants and then they see Foster who keeps on running. Foster runs into Le who saves him and then points his weapon at Foster wondering if he has goes crazy with Pandorum or not. Le doesnt speak any English so its hard to communicate, but Foster tells him that they must go to the Generator to reset it. Foster tells Le that he must go alone and that Le must stay put. Le tells him where to go and Foster leaves. Foster goes into a room and opens two big doors which turn out to be the doors to out on a cargo container that he's in. He is attacked by Traue again and they both fall a few cargo crates down to the ground floor. Le jumps in and fights Traue and Foster breaks it up saying they are all on the same team. They continue on as a team, they are attacked again by the mutants and Traue brings the team to her living area. Her living area is a giant elevator that is based in the Noah's Ark area of the ship. They talk about the area, and how Traue has been awake for about 6 months, and then keep on moving. They now end up in a huge part of the ship where many of the family is stored, also the mutants main feeding area. They must move fast. Foster and Traue move on but for some reason Le stays in one spot. Foster falls into a hole and Traue right after. They land in water not too far from the surface. Foster lights a glow stick and sees that it is basically a trashcan with hundreds of skeletons. A mutant walks right over them and then they climb out the hole. They are attacked by one mutant and have a battle. Foster and Traue are knocked out a bit and Le jumps in out of nowhere and fights him with his sword Foster gets up and so Traue, they all attack the mutant. This show that they are hard to kill even by 3 people. The mutant dies but more come. They keep running and go through a air tight latch that they close. During this time, Gigandet's character climbs through the vent where Quaid is at and is shivering. Gigandet is very jittery and unstable. Since Gigandet was part of the flight crew Quaid asks what happened. Back to Foster and the team. They end up in a room where it seems as though someones been living. The lights turn on and Rouse's character is on a balcony about a story above them with them having no way of reaching him. He welcomes them but does not trust them, he is very shady. Rouse uses a bucket on a rope to hand them soup of some sort. The drink it. Traue tells a story that she think that the mutants are the crew members that have been on there the longest and instead of the Adaptation Excellorator adapting them to Tanis, it adapted them to the ship, thats why they are mutants. Here is where the stories between Quaid and Fosters Team merge. Gigandet and Rouse start telling the story of what happened. It ends up that something happened and Earth Blew Up. This cause the flight crew to experience Pandorum and Gigandet having to kill them. Fosters Team has been poisoned by Rouse and then wake up chained upside down to find out Rouse has been surviving off of humans just like them by eating them. Rouse stabs Traue but not enough to kill her. Foster talks Rouse into letting them go because if he doesnt the Generator will shut off EVERYTHING in about an hour. On the other side, you see Quaid experiencing signs of Pandorum, this causes Gigandet to show signs of wanting to kill Quaid. Fosters team is now again heading for the Generator with Rouse. They see a chile Mutant and see that they are breeding. The child gets away. They get to the generator room which its a giant pillar with a small walkway to get to the middle. Foster attempts to walk across but it break which leaves him hanging and Traue runs across the broken walkway to try to pull him up. Foster decides to fall and lands a few feet down, still hanging. Team Foster look down and see that the ground floor in a sleeping ground for hundreds of sleeping mutants. Le holds the heavy walkway up so it doesnt fall and make noise to wake them all up. Foster jumps down to where they are all sleeping and covers himself in their clothes so he doesnt give off a scent. He finds a ladder but Rouse drops his flashlight and wakes them all up. Foster climbs up fast, Le drops the walkway killing some of the mutants and Rouse runs away. Le runs away after aswell. Foster climbed to where Traue is and they turn on the generator causing a huge wall of blue flame to come up and kill most of the mutants in that area. They both start running. Quaid and Gigandet has a fight because Gigandet want to eject them both from the ship. Quaid ends u winning and locking Gigandet in his Hibernation Tube. Rouse runs all the way to where Quaid is and enters the room thinking Quaid is friendly. But, Quaid kills him with a needle. Le has a fight with a mutant and wins, then sees the child mutant again which slices his neck and kills him. Quaid makes his way to the Flight deck or the Brig. Not knowing he's there Foster and Traue run in there and lock the door. They find Quaid there. Quaid turns out the be the same character as Gigandet and HE killed the flight crew because he was experiencing Pandorum the whole time. Foster asks where they are in space. Quaid opens the shutter on the ship and they are underwater with some cool glowing fish on the outside. They've been on Tanis the whole movie. The ship crash landed. Quaid attacks Foster and Traue. Foster gets knocked down and Quaid is about to kill Traue. Foster shoots his Plasma gun at a mutant that is coming in. This cracks the window on the ship and water starts pouring in. Foster grabs Troue and they run. Quaid gets killed by the water. Foster and Traue run and jump into a Hibernation tube together which is half filled with water, they close it and hit the eject button to eject the Tube from the ship. Foster is holding his breathe while Traue has the breathing deivce meant for the people actually sleeping in the tubes. The tube goes to the top on the ocean, they pop the tube open. They are now floating on Tanis. When Foster his the eject button the ship automatically ejected all of the tubes and the people left alive in the tubes were floating on Tanis as well. The text on the screen said the popultion an Tanis was now 1,700. END.
Many thanks I, for one, appreciate your posting this synopsis. I really enjoy scify movies but do Not like being scared. I wanted every possible spoiler so I could decide whether or not to watch it. I have decided not to, not because you spoiled anything, but because it's just too scary for me. Thanks for all the time and effort you put into this.