Episode 312, "Penitence" Tomorrow 10|9c
SEASON 6, EPISODE 607 - The team members search for a male college student who vanished after making provocative, racist statements about African Americans to an acquaintance during a classroom discussion. Their investigation leads to the discovery of a family secret that could be connected to the man's disappearance. NANCY McKEON ("The Division") guest stars as Gail Sweeney, the mother of the missing man. MICHAEL DORN ("Star Trek: The Next Generation") guest stars as Nathan Riggs.