Where we left off: Zombies overtook Herschel's (Scott Wilson) farm, and Andrea (Laurie Holden) got separated from the other survivors and rescued by…some woman in a hoodie. Also: viewers learned that everyone is infected.
Why we can't wait:Treme's Danai Gurira will join the cast as Michonne -- a popular character in the comic book series. In season 3, Andrea is in grave danger, and Rick (Andrew Lincoln) will become a darker character. "The series is always going to be about whether or not he can retain his humanity, or whether or not he is going to become some kind of hardened monster that really exists only to provide survival for him and his family," says exec producer Robert Kirkman.