Now this is the kind of episode that I like! Plenty of action, the entire group being fractured but then also reforming, Andrea's badass survival skills (I'd have died way before she got so tired) and seeing the glimpse of a new character sure got my attention.
I do wonder though, from the last scene with the group, if Rick is beginning to lose it. I think killing Shane had broken something inside him. I hope to see that show up in the next season.