The end of the world comes every year. Or at least it's supposed to. On May 3, humanity comes together to anticipate the planet's demise, and to celebrate as if the day were truly their last. Sarah is a bookish teenager infatuated with Kurt, a tattoo artist, whom she met at her parents' Last Day celebration a year earlier. Kurt is still haunted with guilt over his role in the death of his young love and wants to make holiday amends to her family. Karen is a misfit with a dysfunctional background who works at the local YMCA, where she keeps getting into trouble, especially when she sets off to find a long-lost adoptive brother. Her friend Rosette has left the Jehovah's Witnesses to follow a new pastor at the Kingdom of God, where she brings Karen on this fateful Last Day. Meanwhile, in space, a group of international astronauts - an American, a Russian, and a billionaire Japanese space tourist - observe Last Day from afar.
