AMC's "The Walking Dead" is returning to life this Sunday, October 13, and the show's fourth season is bound to include plenty of new surprises. Since we first met up with Rick Grimes and the gang, we've witnessed scenes of death, dismemberment, personal betrayal and countless other shocks. Some of the HitFix staffers have put together a list of the show's 10 most shocking far. Remember: Aim for the head. 

It probably doesn't need to be said, but here's a big ol' SPOILER WARNING for those of you not up to date on the show.

Check out our picks below. Which shocking moments are your favorites? Which ones did we miss?

HitFix Poll

What's been the most shocking moment on 'The Walking Dead' so far?