Maggie (Allison Miller) doesn't know how much longer she has with Gary (James Roday Rodriguez) since his cancer is untreatable. She wants to make every day count with the love of her life. What better way to do that than a proposal followed by an impromptu wedding attended by all of their friends? From 'A Million Little Things' season 5, episode 12, 'tough stuff.' Watch 'A Million Little Things' WEDNESDAYS 10/9c on ABC. Stream on Hulu.