There were hints in Season 3 of The Walking Dead that Rick (Andrew Lincoln) wanted to plant his own crops on the prison grounds. Robert Kirkman takes fans on a tour of the Season 4 set in a behind-the-scenes featurette, which shows the gardens Rick and his crew are tending to and the houses they are building. The executive producer also showcases a section of the main fence where several weapons are handy, in case "walkers" try to breach their facility. We also get a look at an unexplored section of the prison, Cell Block A. Hopefully this footage will be enough to whet your appetite until the hit series returns with "30 Days Without an Accident" Sunday, October 13 on AMC.