Bart La Rue

Encountering an uncharted planet in an empty region of space, Kirk and his crew are entertained by Trelane, a playful being who lacks the self control to wield his great psionic powers with discipline. When he threatens the whole ship, Kirk himself faces down Trelane's tantrums until relief surprisingly arrives.

Spock and McCoy are forced to fight in Roman-like games.

Enterprise is sent to planet Ekos to investigate a disappearance of Federation historian John Gill.

Despite Carol's concern he might be seriously injured, Greg earns a spot on the varsity football team.

Bobby takes up an interest in playing the drums and drives the family up a wall. Meanwhile, Peter's football teammates pick on him for being in the choir.

Sun and Sky, the horse favored to win the Kentucky Derby and possibly the Triple Crown, is being shipped to Kentucky to participate in the upcoming race. During the flight, however, all four members of the cargo plane's crew are overcome by some kind of drug, though the pilot manages to radio a distress call before losing consciousness.