Breaking Bad ended in an epic fashion last night when the meth was contaminated by a biological contaminant and it spread a zombie plague across the world. Who knew that the entire series was just a set up to explain the universe of The Walking Dead…. OK, I’m making that up, but the point is, Breaking Bad is now over and The Walking Dead is coming back on October 13th. Now, AMC has released a new teaser for the upcoming season that shows just how dangerous things are going to get at the prison for Rick and the gang.