AMC has released the eighth trailer for Season 3 of The Walking Dead, which returns to its bloody glory with "Seed" Sunday, October 14 at 9 PM ET. This season will focus on two different groups of survivors, the dwindling camp lead by Rick (Andrew Lincoln), and the Woodbury colony lead by The Governor (David Morrissey). Take a look at new footage, including Maggie (Lauren Cohan) killing her first zombie, and Andrea (Laurie Holden) interacting with the mysterious Michonne (Danai Gurira).