Gee, I liked it. In fact, I think I'm going to watch it again. I watched it a while ago and came across it scrolling through vids looking for something to watch. As I recall it is based on a college experiment. That's why they are all young. Besides wouldn't you want young people with specific expertise in a doomsday bunker to restart humanity? I have also found that I don't give allot of standing to reviews. In fact, if the critics give it a bad review that usually means it's good. At least IMO.