Its the story of a six member crew which stays in the International Space Station and and try to get hold of a package coming back from mars which has some clues for extraterrestrial life. The crew soon diacovers that the creature they had brought up was a monster who had wiped the mars from all other life forms and they try to stop it from reaching earth by creating firewalls.
It is an excellent movie for those who like sci-fi and must watch for science geeks like me.It really pushes your imagination to think waht would happen if that same thing would be true. Its a really great movie