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One thing's for sure about Walking Dead's upcoming third season: There will be blood.

In the new promo, Rick leads the exhausted group inside a walker-infested prison yard where it's kill or be killed — and judging by this short preview, there is a lot of killing!

Walking Dead Exclusive: Andrea gets awfully close to The Governor

The video also gives us more glimpses of The Governor, who plays host to Andrea and the katana-wielding Michonne at Woodbury — at least for now.

The Walking Dead returns Sunday, Oct. 14 at 9/8c on AMC.