Doctor McCoy talks to Captain Kirk about Mister Spock's erratic behavior. Kirk witnesses Spock throwing a bowl of soup at Nurse Chapel. Spock asks Kirk for some time off, on Vulcan. Kirk agrees to let him have some time off on Vulcan as requested but he also asks him if anything is wrong. Spock doesn't want to talk about it.
A message from Starfleet forces Kirk to change course and head for Altair VI. Kirk relays this message to Ensign Chekov. Not long after that Kirk learns that Spock had Checkov change course and that the Enterprise is now headed for Vulcan. Kirk has Spock go to sick bay. Doctor McCoy examines him. The Enterprise changes course for Altair VI and then back to Vulcan after Kirk learns from McCoy that if they don't get to Spock to Vulcan soon that he might die.






