Jesse is rocked by visions of an apocalyptic future as he and Tulip prepare for an all-out assault on Masada, where Cassidy - trapped to a torturous fate - struggles to hang on. But Starr and his Grail operatives are ready for them...

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God maneuvers the chess pieces of His apocalypse closer to the endgame as Jesse searches for a mysterious rock formation that may be the final leg of his journey. Tulip devises a last-ditch effort to save Cassidy from his torture.

In her attempt to rescue Cassidy, Tulip meets an unexpected obstacle. As his hopes of escape fade, Cassidy reflects on decisions he made one hundred years ago. Meanwhile, the Saint of Killers is closing in on Jesse.

Tulip forges an unexpected alliance to plumb Masada's dungeons and free whatever remains of Cassidy. Meanwhile, Jesse's mission to Australia may be over before it's even started as he finds himself stranded.

AMC Premiere Exclusive. The cast and creators discuss Season 4 and answer fan questions at a live panel discussion in San Diego.