If you meant the firefighter drama, this episode is a crossover with Grey's Anatomy and focuses on:

: The episode serves as a "What If" scenario, showcasing how Nick’s anxiety and self-centeredness could lead to a future of isolation and superficial success.

: Nick is given two tickets to a "space ark" designed to save humanity's elite. Realizing he has no one to go with, he attempts to reconnect with people from his past, including Jessi , who has become a radical activist.