While speeding toward headquarters for a meeting with Devon, Michael encounters a beautiful young Army officer whose car has broken down, and offers her a ride to the base. Lt. Robin Ladd, daughter of a top Colonel, has just returned from duty in Germany and is planning a surprise visit to her father's command post. On arrival, she learns her father has been found dead, and no one can offer her a believable explanation. Immediately suspicious, she suspects foul play, and convinces Michael to help her unearth the clues that would explain Colonel Ladd's death. Together, they launch a plan to secretly investigate the medical records, the Colonel's files, and the mysterious behavior of her father's associates. With Robin's knowledge of the military set-up, and with the help and protection of Michael's computer car, they uncover a plot to steal nuclear weapons that Colonel Ladd has tried unsuccessfully to subvert. Unfortunately, Michael and Robin have been watched by the other officers involved, and almost lose their lives in a spectacular crossfire in which K.I.T.T. comes to the rescue hurling the military's own ammunition.