Spoilers to follow, but yuh should know better than to view this thread before watching.
The last 2 episodes of the season were boss. Shane goin crazy and settin up Rick was well done, Darryl didn't fail us and knew something was up. While Rick was walkin with his son after Shane jump up and get put down, I couldn't sit knowing that on the edge of the darkness was a big herd of walkers. Andrea gettin left was a good touch too.
Finally they revealed what the CDC scientist whispered to Rick just before they escaped that blast. And this sword-wielding woman with 2 armless and jawless walkers, man that look real creepy.
Don't forget the return of Merle is still to come.