After last night's episode of The Walking Dead, we're looking forward to seeing how the two groups of survivors collide in the upcoming episodes. If you want a good idea of what to expect from the next episode, we have new photos and preview videos from "Killer Within":

Episode 3.04 - Killer Within: The group is severed and lives are put in jeopardy. In Woodbury, Merle has a request for the Governor. Written By: Sang Kyu Kim. Directed By: Guy Ferland

Keep an eye out for our interview with David Morrissey and Robert Kirkman later this week to discuss the third episode. We'll also have a review of Killer Within online before its premiere on Sunday.