Fallout season 2 post-credits: Liberty Prime Alpha and season 3

The Fallout season 2 finale closes on a Brotherhood of Steel civil war and a post-credits reveal: Dane brings a rolled-up blueprint to Elder Cleric Quintus, who declares "Quintus the Destroyer is born" and unveils plans for a giant robot called Liberty Prime Alpha. The sequence follows the chaos that erupted after Maximus killed Commonwealth paladin Xander Harkness and stole the cold fusion device, prompting chapters to distance themselves from Quintus.

The series ties Liberty Prime to its history in the games, describing it as a vast, heavily armed robot originally developed before the Great War that lacked a power source until later restorations in Fallout 3 and Fallout 4. In those stories Liberty Prime proved capable of devastating settlements, was restored and used by Brotherhood forces, was destroyed, and later rebuilt as a Mark II.

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