The planet is covered with snow. Global warming was getting to be too much to live with. Man tried to compensate with a weather machine and it just never stopped snowing. Man died off as vegetation died off. Colonies grew with people trying to survive underground. Colony 7 had at one time 400 people now it is down to 75 people or so.
They live by the rule if you get sick you are quarantined given a test and if you fail you are taken top side and allowed to walk or shot. The man in charge of this job is Mason (Bill Paxton). He would rather just shoot you. Briggs (Laurence Fishburne) is in charge of Colony 7 and he is about to make some changes. Sam (Kevin Zegers) had reported what he saw Mason do top side and it bothered Briggs. You see they still try to have some form of civility even though the human race is near extinction. Colony 7 had been in contact with Colony 5 but had lost radio contact. Briggs wants to take a small group to see what has happened. He and Sam and a kid are to cross the snow to Colony 5 but Briggs is worried about Mason taking over. Briggs put Kai (Charlotte Sullivan) in charge but when the three are gone Mason does take over. What Mason doesn't know is that when Sam is the only survivor of the three to return he is followed by a group of cannibals lead by the Feral Leader (Dru Vierqever).
What you see at Colony 5 makes this movie worth viewing. Director Jeff Renfroe does an excellent job with the cast and crew and what might come for mankind. That's the great thing about this horror movie, it is a possibility.
I'm not a fan of the Horror genre per se, but every so often you come across a movie that is worth watching and this is it. So sit back with your popcorn and enjoy the future. If we are not careful all we can do is survive.