High Quality Content by WIKIPEDIA articles! "Nebraska" is the eighth episode of the second season of the post-apocalyptic horror television series The Walking Dead. It originally aired on AMC in the United States on February 12, 2012. In the episode, the survivors deal with the aftermath of the barn shooting, which causes Hershel Greene (Scott Wilson) to start drinking and disappear from the group, leading Rick Grimes (Andrew Lincoln) and Glenn (Steven Yeun) to try to find him. Meanwhile, Dale Horvath (Jeffrey DeMunn) becomes more suspicious of Shane Walsh`s (Jon Bernthal) actions.