This episode was part of a two-hour series finale in the United States.
Ben Savage reprises his role as the younger version of Gideon from "Nelson's Sparrow (2015)"; Gideon was originally played by Mandy Patinkin, who appeared with Ben's older brother, Fred Savage, in The Princess Bride (1987).
The advertising tag for this episode was "Dare to get inside one last time".
There is no closing quote in this episode, as it is the first of two parts.