Loved the scenes with Daryl as he is my favorite character. I'm a little disappointed to see that Merle was just in his head but when Merle went down and started eating his boot I was like ...

... WTF ... smooth segway into a walker and I was like ...

... *&^% #@*&!
Seems to me that the old guy who runs the farm / house is getting a bit impatient with the decisions that others are making. He's losing a grip on his control and he isn't liking it.
Sophia ... Sophia ... Sophia ... I'm tired of guessing to what happend to her. Maybe she's hiding in the barn. I dunno. But c'mon ... let's move this story forward.
The young girl ... Glen's new fantasy squeeze ... she knew EXACTLY who the walker was in the well.
The walkers in the barn ... I'm thinking they are family and friends. Perhaps someone turned while they were having a barn party or something. And maybe the old guy who's losing control, locked the barn door and trapped everyone in there to save himself and whomever was on the outside. Unless of course someone lured a herd of walkers into the barn with some live bait or something, then locked the barn doors behind them.
I'm really hoping that the writers bring back some characters from the first season. Live and in-living-color. Not in flashbacks and not in the minds of the current characters.