Dan travels to the early '90s on the trail of a serial kidnapper; Katie is called to Zack's school; and Jack begins to see signs that his brother is telling the truth about his time trips.

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.