Last week, the "Walk With Me" episode of The Walking Dead focused on Michonne, Andrea, Merle, The Governor, and the community of Woodbury. It was the first episode ever of The Walking Dead where Rick did not appear. However, this week's episode returns to focusing mainly on Rick and his group of survivors, and we kid you not when we say this is an episode of The Walking Dead that you do not want to miss. This week's episode of The Walking Dead is entitled "Killer Within." According to the AMC description, "The group is severed and lives are put in jeopardy. In Woodbury, Merle has a request for the Governor." In the official sneak preview for "Killer Within," Rick and his group are getting prepared for a long day of burning zombie corpses, when Carol asks where Glenn and Maggie are. Daryl points out that Glenn and Maggie are in the guard tower, which surprises Rick because they were just up there last night. Daryl calls out to ask Glenn if he is coming, and a shirtless Glenn pops out of the door. Evidently, there was a little romance happening in the guard tower. The "Killer Within" episode of The Walking Dead airs on AMC on Sunday, November 4 starting at 9:00 PM ET. Check out the one minute and thirteen second sneak preview of the episode below.