AMC has released the latest trailer from Season 4 of The Walking Dead. The network also announced that the season premiere, "30 Days Without an Accident, will debut on Sunday, October 13 at 9 PM ET. Will Rick and his group at the prison be safe from the walkers outside, not to mention The Governor (David Morrissey) who is still on the loose? Take a look at the latest footage and stay tuned for more updates on this upcoming season from Comic-Con 2013.