Mr. Spock and Dr. McCoy are walking through the corridors of the USS Enterprise, where they encounter Crewman Norman. McCoy mentions that Norman is odd and unemotional; for some reason, Spock hasn't noticed. Norman makes his way into auxiliary control, where he knocks out the crewman on duty and activates the override. On the bridge, Sulu reports a course change whereupon Captain Kirk sends security to auxiliary control, but to no avail. Sulu tries to override the course change, but fails.