24 Fox

I finished season 4 of 24 on dvd. Here's the synopsis:

Season 4

Set 18 months after season 3, season 4 begins and ends at 7:00 AM. Jack must save the lives of Secretary Heller and his daughter Audrey Raines (with whom Jack is romantically involved) when they are kidnapped by terrorists. The same terrorists then launch further attacks against America, and Jack is forced to use unorthodox methods to stop them, methods which will have long-term consequences for both Jack and the U.S.