Once more Spock is ill (poor guy, someone should do something for him!). Doctor McCoy has to find out what it is. Captain Kirk has to worry.

A love vs logic story. A young woman is going to face koon-ut-kal-if-fee. She has to decide if she will accept her bondmate or allow her lover to challenge him.

A short story about Spock teaching at Starfleet Academy, a cat and a computer bug.

A very young Spock is lost in a Vulcan desert, along with his Human cousin. Both the boys will learn something from the adventure.

Dr McCoy learns to his own expense that it is dangerous to pick up and bring home unknown things.