[Warning: This story contains spoilers for the fifth episode of Game of Thrones' seventh season, "Eastwatch."]

"Death is the enemy — the first enemy, and the last."

Beric Dondarrion (Richard Dormer) knows all too well about this alpha and omega-level opponent, having lived through many deaths of his own. It sure looks like he's facing his final fight with his eternal enemy, based on the trailer for the next episode of Game of Thrones.

The preview for the penultimate installment of season seven, directed by Thrones veteran Alan Taylor ("Baelor," "Fire and Blood"), focuses almost entirely on the great battle brewing beyond the Wall, which sees Jon Snow (Kit Harington) and his allies venturing out into the bitter cold unknown, on a mission to apprehend a wight and convince both Daenerys (Emilia Clarke) and Cersei (Lena Headey) to put aside their differences and focus on the only war that matters — the war between the living and the dead.

Although there are quick glimmers of other storylines, including Daenerys and Tyrion (Peter Dinklage) together at Dragonstone, as well as Arya (Maisie Williams) confronting Sansa (Sophie Turner) at Winterfell, the vast majority of the minute-long trailer is spent on Jon's companions trekking into the snow and slugging it out with wights and White Walkers alike. It opens with Beric's aforementioned words, which he shares with King Snow, a man who knows a thing or two about battling death, having experienced the real thing once before.

"The enemy always wins," says Beric, seen later in the trailer gripping a flaming sword. "And we still need to fight him."

Given what's at stake, and given the amount of warriors on the battlefield, it's a sad inevitability that at least one main character will die in this collision between man and monster. Beric's prominence in the trailer makes him the number-one pick on the draft board; how many lives can one man have, after all? 

On top of his placement in the preview, there are book-based reasons to believe that Beric's time on the show is starting to draw to a close, even if it would have to happen differently onscreen than his final fate plays out on the page. We have our own theory about how it's going to go down: Beric will somehow sacrifice himself in order to breath life back into Jon Snow, cut down once again in his war against the dead. Within the week, we'll know if it's just a Valyrian-foil hat theory, or if there's some substance to the prediction that Jon is about to die and live again once more — with Beric dying permanently in the process.

Watch the trailer below.

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