The fourth season of AMC's The Walking Dead is about a month away, so we've brought you the upcoming run's trailer and a few scene teasers to get you in the mood.  Last season featured Rick Grimes (Andrew Lincoln) and his group of survivors squaring off against The Governor (David Morrissey) in a brutal and bloody shoot-out.  The tone of the new season looks like it's going in a different direction, with a more balanced approach that keeps the external threats present in a big way while allowing internal strife and foul play to put the survivors even more on edge.  Plus lots, and lots, and lots of zombies.

Season four of The Walking Dead premieres on AMC Sunday, October 13th at 9/8c.  Hit the jump to watch the trailer and teasers.

Here's the Comic-Con trailer for the upcoming season of AMC's The Walking Dead:

"Cell Block Breach" teaser:

"Please Help Me" teaser:

"Car Attack" teaser:

"Found Its Way In" teaser