"Walking Dead" fans are still in denial over the upcoming departure of Andrew Lincoln, who has anchored the series as Rick Grimes since the show's beginning. Now, we know exactly when he'll say his final goodbye.

According to, in  a new promo for episodes 904 and 905 -- which will air on Sunday, October 28 and Sunday, November 4 -- AMC called the installments "Rick's final two episodes." That means that episode 905 will officially mark Lincoln's "TWD" swan song.

The episode, called "What Comes After," features this synopsis:

"Rick is forced to face the past as he struggles to maintain the safety of the communities and protect the future he and Carl envisioned."

The "Walking Dead" creative team has been hyping Lincoln's final episode since his departure was confirmed, promising that "something special" is in the works for the sheriff. Lincoln himself has said that he helped craft his goodbye storyline, which will no doubt fuel the rest of the series going forward.

We already know that several former "TWD" castmates will be reprising their roles to help send off Rick/Lincoln, including Jon Berenthal (Shane), Sonequa Martin-Green (Sasha), and the late actor Scott Wilson (Hershel). Better spend the next two weeks preparing yourself for an epic -- and no doubt insanely emotional -- farewell.

Lincoln's final appearance on "The Walking Dead" will air on November 4 on AMC.