Walton Goggins, Ella Purnell, Aaron Moten and the 'Fallout' showrunners break down the unforgettable season one finale. They describe shooting the big "whopper" revelations for all of the major characters as they coalesce at the Griffith Observatory. They also tease details for season two which finds many characters headed to the fanfavorite location of New Vegas.

Variety Making a Scene Presented by HBO