Rick's group has finally found a home (the prison) where they feel safe, but next week's episode, "The Killer Within," will show the group tested to their breaking point by a saboteur. Check out the two new promos below, which indicate the fourth episode could be the most exciting episode this season.
The Walking Dead returns October 14 and will air Sunday nights at 9/8c on AMC. The show stars: Andrew Lincoln, Jon Bernthal, Laurie Holden, Jeffrey DeMunn, Sarah Wayne Callies, Steven Yeun, Chandler Riggs, Norman Reedus, Danai Gurira, and Melissa Suzanne McBride.