Ignoring Casey's wishes, Elsa throws her a big birthday party, while Sam insists on following a decade-old birthday ritual. The bartender haunts Doug.

As Paige makes a plan in the face of adversity, Sam awaits a crucial academic update. Elsa endures an uncomfortable encounter.

Sam's living situation with Zahid gets off to a rocky start, while Elsa struggles with her son's departure. Casey weighs telling Doug about Izzie.