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With the illness spreading, many are put into isolation to keep the contamination limited. As Hershel tries to help the infected, Tyrese, enraged over the murder of Karen and David, joins Daryl, Michonne, and Bob on a medical run.
Ratings: 12.9 Million Viewers
Trivia: The herd of walkers portrayed in this episode is the largest in the history of the show. 100 real zombie extras were turned into about 10,000 walkers.
Tyreese: You're a cop. You find out who did this and you bring them to me, you understand? You bring them to me.
Daryl: We'll find out who brought them out--
Tyreese: Do I need to say it again?
Rick: No, no. I know what you're feeling. I've been there, you saw me there. It's dangerous.
Tyreese: Karen didn't deserve this. David didn't deserve it. Nobody does.
Hershel: We just went through something terrible. Everything we've been working so hard to keep out? It found its way in.
Rick: No, it was always there.
Glenn: We're going to be okay, right? I mean, Karen and David, they were already sick so if we were going to get it we would have had it by now.
Hershel: It doesn't happen on a timeline. It's different with everyone.
Glenn: We could be okay.
Hershel: Yeah, we could be. Everything could be okay.
Daryl: Oh, there you are. Took me damn near forever to find you. What are you doing?
Tyreese: Somebody needs to stand watch.
Daryl: Man, I want to find them too. Put a bullet into them for what they did. These people are cut off. There ain't no way people are getting in and out without a whole bunch of people seeing them.
Tyreese: Shasha's in there. I ain't going nowhere.
Daryl: Standing guard ain't going to do no good unless we come back with the meds.
Tyreese: I'm going on a run with Daryl, but I was wondering...I know there's a lot of people in trouble. Sick. It's just, I know how you are, you care.
Carol: Thank you.
Tyreese: I was wondering if you could look in on Sasha for me. It would make me feel better knowing you were looking in on her. If you can't...
Carol: No, no I'd be happy to.
Tyreese: Thank you.
Carol: What happened to Karen, I'm so sorry.
Glenn: This sucks. After everything, I'm just going to get taken out by a glorified cold.
Hershel: Don't say things like that. Don't even think things like that.
Glenn: All I can do is stop saying them.
Hershel: No, you can do more. We got this far somehow, you can believe somehow. We all have jobs here, and that one is yours.
Rick: You know, you do a lot for us. For the kids. You sacrifice a lot. Is there anything you wouldn't do for the people here?
Rick: Carol, did you kill Karen and David?
Season 4, Episode 2:
Tyreese's girlfriend, Karen died in 4x02 "Infected
" and was found outside burned.
Season 3, Episode 4:
Rick tells Tyreese he knows what he is feeling. He is referring to the death of his wife Lori in 3x04 "Killer Within
" while giving birth to their daughter Judith.
Season 3, Episode 12:
Carl is wearing the backpack that he, Rick and Michonne took from the Unnamed Hitch-hiker they passed on the road in 3x12 "Clear
Season 4, Episode 1:
The car they are using to go on the trip to get medication was Zacks car. In 4x01 "30 Days Without an Accident
" Zack was killed on a trip to the store for supplies.