Some weirdness about it:

• No President Palmer
• There's a new person in charge of CTU
• No Tony (or is there?) or Michelle
• CTU seems a different building
• too many new people (Edgar, that new girl, Curtis); lucky Chloe is still there though (for a bit)

I've only just started though, so don't cry if I'm entirely wrong.

Another thing that I've learned today is never to research 24 on the internet- I found out more than I wanted to know and now I'm kicking myself about it, although the site almeidaisgod.com is rather amusing...