I really like that show 'The 100'.
Its about an earth devastated by nuclear warfare, a couple hundred, maybe thousand make it to space. 13 space stations for 13 different colonies, when the show actually starts all space stations were merged to one, but it turns out there is an oxygen problem. So they send 100 people under 18 who have committed a number of crimes to earth. After that the show switches from the station to the kids/teens. I think its really good because it reveals the people who survived the blast and stuff.
Really good show, its on Netflix. Maybe some other sites.