This show was so good, aired 2000-2010, maybe on fox, College kids are getting attacked on campus and shot at. Its blacked out outside, so everyone is running from their rooms to like the dorm basement or classroom. This splits the students into Two groups of hostages but they dont know by who or what. They end up being against each other on how to survive. One group ends up going outside to find others, someone shots them in the dark. Its takes place in Los Angeles I think, in the end one leader ends up getting to a trail overlooking the city and its all black like bombs where set off. Tell me the name please!!!