Best EpisodeĀ 

Blake – A temporarily insane Dr McCoy accidentally changes history when he journeys through a time portal. Kirk and Spock follow him to prevent the disaster, but they have to pay a high price.

Imdb Score [9.3]

Worst Episode

The Way to Eden – A group of idealistic hippies, led by an irrational leader, come aboard the U.S.S. Enterprise.

Imdb Score – [5.5]