Indifference

"Indifference" is the fourth episode of the fourth season of AMC's The Walking Dead. It is the thirty-ninth episode of the series overall. It premiered on November 3, 2013. It was written by Matt Negrete and directed by Tricia Brock.

Plot
While on a supplies mission to a local college, members of the group run into multiple hurdles. Things at the prison are getting worse.

Co-Stars

 * Brina Palencia as Ana

Uncredited

 * Unknown as Big Tony
 * Cayla Ridley, Joel Studer and John Jaret as Walkers

Deaths

 * Big Tony (Zombified)
 * Ana

Trivia

 * First appearance of Sam.
 * First (and last) appearance of Ana.
 * First (and last) appearance of Big Tony. (Zombified)
 * The title of the episode, "Indifference", refers to how Carol has become indifferent to survivors dying and the general situation they are all in, becoming cold and doing whatever she feels is needed to survive, as seen when she murdered Karen and David.
 * It may also refer to how Bob was open to Daryl about how he should have kept walking before joining the prison group and when Daryl discovers that Bob's bag had no medicine but a bottle of liquor. Daryl no longer sympathized with him and that they should have never let him join the prison group to begin with.
 * This is the last appearance of Carol in the first half of the fourth season.
 * This is the second time that Carol's status became unknown on a season's fourth episode, The first one was back in the third season's episode, "Killer Within".
 * This episode marks the first time that Emily Kinney and Sonequa Martin-Green are credited in an episode in which they do not appear.
 * It could be noted that Ana's leg, when found by Rick, was cleanly cut at the shin instead of torn as if a walker had ripped it off.
 * Tyreese stares out of the van window to watch a few walkers roaming the field. This is similar to Shane Walsh doing the same thing in "18 Miles Out".
 * This is the second episode of The Walking Dead to use the same song that it used in the trailer in an episode, albeit an alternate version. The first was "18 Miles Out".
 * The name of the song is "Serpents" by Sharon Van Etten. Although a different version from the version played in the trailer.