John Tanner, son of Presidential envoy Carleton Tanner, is driving with his French-born wife,Michelle, in the small village of Brebeuf, France when they see an other-worldly vehicle hovering on a cushion of light. As Michelle watches in horror, an alien figure beckons to her husband, and he disappears inside the vehicle. Because the abducted man was the son of a Presidential envoy, Gatlin and Fitz are ordered by the White House to investigate the incident. Working with French authorities, the Blue Book team try to find physical evidence to prove the vehicle really hovered over Brebeuf, and also find an explanation for Tanner's disappearance.
