Grey’s Anatomy

ABC | 8:00 pm

While a blanket of thick fog creeps its way across Seattle, the Grey Sloan medical staff tries to navigate through a pea soup of personal problems in "Jump Into the Fog," the Season 15 finale. Meredith and Alex (Ellen Pompeo, Justin Chambers) team up to try to save young Gus (guest star Christian Ganiere), while elsewhere, Levi (Jake Borelli) tries to get the struggling Nico (Alex Landi) to calm down and see things more sensibly.