A threat to the Stone family tests Michaela's commitment to play by the rules and forces Grace to make a difficult decision. Ben enlists the aid of an old rival to save an old friend. Olive helps a new friend solve a calling that unearths a startling connection.

Ben and Saanvi join forces with Vance in his newest venture to understand Flight 828. Michaela and Zeke adjust to their new home life together, but pivot in order to aid a non-passenger with a looming Death Date of their own. Olive gets a taste of heartwarming normalcy with a very Manifest prom.