Here’s everything you need to remember before Fallout returns on Prime Video. Prime VideoFallout Season 1 follows Lucy MacLean (Ella Purnell) on a quest to rescue her father Hank (Kyle MacLachlan) after he is abducted by bandits. With his true identity revealed at the end of Season 1, Hank elects not to return to his Vault. In Season 2, Cooper and Barb travel to New Vegas, where Mr. House (played in this season by Justin Theroux) reigns supreme. Fallout Season 2 premieres December 17 on Prime Video.