The season 4 premiere episode "30 Days Without an Accident" aired tonight and I'm pretty happy with it. There's lots of gruesome zombie makeups as usual and Nicotero does a good job directing the episode. I think the use of levity worked well and shows how comfortable the characters have become living with each other in the newly improved prison community. The progress the group has made feels natural and the episode ends in an interesting cliff hanger of sorts.
end of spoilers
Farmer Rick cracks me up especially when Michonne and Hershel were making fun of him a bit. It was all in good fun though. Was the gun he found buried in the ground put there in a previous episode? Carl gets bonus cool points for staying up late and reading comic books. Plus it's a nice nod to the source material. I really enjoyed the liquor store scene with zombies falling in through the ceiling. The army helicopter caving in the rest of the roof was a nice touch. Did not expect that Zack kid to be a casualty. His scene with Michonne and Daryl was pretty funny. My first thoughts about the kid with glasses is that he'll end up as zombie food. Instead he served a much more interesting purpose as patient zero for some kind of swine flu.