Rick Grimes Faces Reality in New "The Walking Dead" Promo Images

"The Walking Dead" will return to AMC in a little more than a month for the second half of season six, and the show is making sure it remains fresh in fans' minds. A new promo image featuring a close-up of Rick Grimes (Andrew Lincoln) has surfaced on Twitter and Instagram, along with the grim caption, "I thought living behind these walls was possible... I was wrong."

More will be revealed tomorrow on Instagram, the official copy promises.

"The Walking Dead" returns with new episodes at 9 p.m. Sunday, Feb. 14 on AMC.

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