Dan travels back to the newspaper's holiday party after Christmas Eve layoffs hit his office. He also runs into his father in the past and asks him to spend more time with the family. Elsewhere, Katie tries to put her traumatizing experience behind her, and Jack and Theresa receive some surprising news.

Dan meets another time traveler, whom he agrees to help reunite with a past love; Livia lands in the present just as her wedding in the past is about to happen; Jack seeks answers from Elliot; and Katie panics when she finds blood at home, but no Dan.