Friends and allies, including Eileen, Charlie, Bobby, and Donna, disappear into thin air as Chuck begins "cleaning up" the world.
The Empty opens a portal and drags both Castiel and Billie into its void, leaving Dean alone in the bunker. Production Context Watch Supernatural S15E18 WEBRip x264-ION10 1
The episode's climax involves a major development for the character Castiel: Friends and allies, including Eileen, Charlie, Bobby, and
Cornered by a vengeful and dying Billie in the bunker, Dean and Castiel are trapped in a warded room. Friends and allies
Following the failure of their plan to defeat God (Chuck), the Winchesters face a global catastrophe as people begin to vanish from existence.
Dean and Castiel head to Death's Library to kill Billie (the current Death) with her own scythe, believing she is behind the disappearances.