An 18th birthday mushroom trip brings free-spirited Elliott face-to-face with her wisecracking 39-year-old self. But when Elliott’s "old ass" starts handing out warnings about what her younger self should and shouldn't do, Elliott realizes she has to rethink everything about family, love, and what's becoming a transformative summer.
Maisy Stella
as Elliott
Aubrey Plaza
as Older Elliott
Percy Hynes White
as Chad
Maddie Ziegler
as Ruthie
Kerrice Brooks
as Ro
Maria Dizzia
as Kathy
Alain Goulem
as Tom
Seth Isaac Johnson
as Max
Carter Trozzolo
as Spencer
Alexandria Rivera
as Chelsea
