Luke Horton (Jeremy Garrett) seems to be a happy man awaiting the arrival of a new baby. When Luke disappears after an uplifting speech at his high school reunion, Jack and the team find Luke's blood at the location of his disappearance. The agents also discover that he was under investigation for financial improprieties at work and was possibly having an extramarital affair with another married man, Alan (D.W. Moffett - "For Your Love," "Cold Case").