Glenn is digging graves for Karen and David, staying true to his motto of "Bury the ones we love, burn the rest". But wait, what if someone already burned them? I guess "Bury the ones we love, even if they've already been murdered and burned, and burn the rest" isn't as catchy.
Tyrese flips out on Rick for doing nothing about the situation. Um, dude? It's been like 5 minutes and he's been busy shoring up the fence and serving bacon to zombies, while YOU have been traipsing around the prison with flowers for your girlfriend. Chill. But Rick sheds the last of his farmer role and beats the bejeesus out of Tyrese. Take, that, punk! Actually, I don't like human-on-human fighting that much and I had to wipe the testosterone from my TV screen with a paper towel, so I could really do without stuff like that. However, I know it's supposed to set up Tyrese being REALLY MAD and Rick feeling pressure to do something about it.
Sasha and Glenn get sick (yikes! people we actually care about!) and go into quarantine.
Hershel and Carl go on an elderberry hunting mission in the woods so that Hershel can make tea to ease the sick people's suffering, while Daryl, Michonne, Tyrese, and Bob go on an expedition to the vet school to get meds. Some walkers creep up on Hershel and Carl but as one is missing the lower half of its body and the other has one leg caught in a trap, Carl wisely decides (at the urging of Moral Hershel, of course) to let them be. No need wasting bullets or firing shots that could attract less-incapacitated zombies.
Hershel then bravely goes into the sick ward, risking infection himself. Though, really, at this point nearly everyone has been exposed due to their half-ass quarantine procedures. It's like the non-smoking section of a restaurant being right next to the smoking section. "Bad smoke! No! Don't cross the invisible line! Didn't you see the no smoking sign?" Hershel gives an awesome Hershel speech about how everyone will die, we just have to choose what's worth dying for. I'd say it's not worth dying for most of the unknowns in the sick ward but I'm cold like that. I do like Glenn and Sasha, though, and I agree with Hershel on principle, you brave hero you!
Carol has been stoic through all of this but then loses it (I wonder why?) and then knocks over their dwindling water supply. Worth it! Hope that kick felt good! It's not like anyone in the sick ward could use that water, dummy.
Daryl pulls a Lori and almost crashes the car, because for some reason, in a car with 4 people, it was the driver who needed to futz with the radio controls. At least they heard snippets of a live broadcast for their efforts. Wonder if that storyline will go anywhere? Anyway, as a result of his crash, they are smack-dab in the middle of the biggest horde this show has ever seen. I'm not good at estimating but maybe 1000 zombies? Maybe more? It's not looking good. They abandon the car, but Mad!Tyrese sits there and debates whether he should live or not, just long enough to let a bazillion zombies gather around him. Finally he goes Mad!Hammer on them and we cross our fingers he makes it out. He does (he must have borrowed The Governor's force field of inexplicable protection) and he lives to see another day. I guess I'm happy.
Back at the prison, Ranger Rick uses his mad cop skillz and discovers, via a small bloody handprint, that it was Carol who killed Karen and David. OMG! I was not expecting that. I guess that's what the water cooler kicking was all about. He confronts her and she admits it. Well, brownie points for being honest but I'm not sure that will get her very far.
Next week: What will happen now that we know Carol is the killer? Will our guys on the run make it to the vet school and back in time? Will Brave Hershel die trying to save a bunch of sick idiots (plus Sasha and Glenn)? We'll find out!