Star Trek: The Animated Series

On a planetary survey mission, Kirk and Spock have to deal with a reckless observer named Bem.

Dr. McCoy is arrested and held responsible for causing a plague that ravaged the planet Dramia Two, where he performed a mass-inoculation 19 years earlier.

When Spock is stricken by a disease fatal to Vulcans, the Enterprise is to meet a freighter with a load of drugs that provides the only cure, but Orion pirates attack the ship and Kirk must track down the Orions and the drug before it is too late.

After passing through an unusual cloud, the Enterprise computer develops a playful--and potentially lethal--personality.

The Enterprise crew encounters an alien who visited Earth in ancient times and became known as the Mayan god Kukulkan.

The Enterprise tries to save an unidentified ship plunging into a supernova but is dragged into a universe where time runs backwards. Their only hope to return home is Commodore Robert April, the first commander of the Enterprise.