Series The Walking Dead
Season 4, Episode 3
Walking Dead 4x03 001.jpg
Air date October 27th, 2013
Writers Robert Kirkman
Director Dan Sackheim
Producers Robert Kirkman; David Alpert; Greg Nicotero; Tom Luse; Gale Anne Hurd; Scott M. Gimple; Paul Gadd; Jolly Dale; Angela Kang; Curtis Gwinn; Nichole Beattie; Seth Hoffman; Denise Huth; Caleb Womble; Matthew Negrete; Channing Powell; Kenneth Requa
Starring Andrew Lincoln; Norman Reedus; Steven Yeun; Lauren Cohan; Chandler Riggs; Danai Gurira; Melissa McBride; Scott Wilson
Episode guide

"Isolation" is the third episode of season four of the survival horror series The Walking Dead and the thirty-eighth episode of the series overall. It was directed by Dan Sackheim with a script written by Robert Kirkman based upon the Image Comics comic book series The Walking Dead. The episode first aired on Sunday, October 27th, 2013 on AMC at 9:00 pm. In this episode, the contagion sweeping the prison worsens, infecting both Glenn and Sasha. Tyreese goes berserk after learning of the death of Karen, and Hershel tells Rick about a nearby veterinary school that might carry antibiotics.

Synopsis[edit | edit source]

Cast[edit | edit source]

Starring[edit | edit source]

Also starring[edit | edit source]

Co-Stars[edit | edit source]

Notes & Trivia[edit | edit source]

  • This episode is rated TV-MA.
  • This episode had a viewership of 12.92 million people upon its initial broadcast, which is down by 1.03 from the previous episode. It scored 6.8 in the 18-49 viewing demographic. [2]
  • The entire main cast and supporting cast of the series all appear in this episode.
  • This is the fourth appearance of Doctor Caleb Subramanian. He appeared last in "Infected". He appears next in "Internment".
  • The news broadcast that Daryl Dixon picks up on the radio speaks of "sanctuary". This is Terminus, which plays a role at the end of the season and in the beginning of season five.
  • The identity of the individual responsible for killing Karen and David is revealed at the end of this episode.

Quotes[edit | edit source]

  • Hershel Greene: You haven't been exposed. Daryl has. You get in a car with him...
  • Michonne: He's already given me fleas.



  • Hershel Greene: Listen, damn it! You step outside, you risk your life. You take a drink of water, you risk your life. And nowadays you breathe, and you risk your life. Every moment now you don't have a choice. The only thing you can choose is what you're risking it for.


  • Tyreese Williams: You're a cop. You find out who did this and you bring them to me, you understand? You bring them to me.
  • Daryl Dixon: We'll find out who brought them out--
  • Tyreese Williams: Do I need to say it again?
  • Rick Grimes: No, no. I know what you're feeling. I've been there, you saw me there. It's dangerous.
  • Tyreese Williams: Karen didn't deserve this. David didn't deserve it. Nobody does.


  • Daryl Dixon: Oh, there you are. Took me damn near forever to find you. What are you doing?
  • Tyreese Williams: Somebody needs to stand watch.
  • Daryl Dixon: 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 Williams: Shasha's in there. I ain't going nowhere.
  • Daryl Dixon: Standing guard ain't going to do no good unless we come back with the meds.


  • Tyreese Williams: 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 Peletier: Thank you.
  • Tyreese Williams: 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 Peletier: No, no I'd be happy to.
  • Tyreese Williams: Thank you.
  • Carol Peletier: What happened to Karen, I'm so sorry.


See also[edit | edit source]

External Links[edit | edit source]

References[edit | edit source]

Walking Dead logo.jpg
Season Four
This article pertains to an episode from season four of the The Walking Dead television series.
This template will categorize articles that include it into the Walking Dead/Season 4 episodes category.
Community content is available under CC-BY-SA unless otherwise noted.