Bobby Clark

Kirk, Scott, McCoy and Uhura enter a parallel universe.

To settle a skirmish between the Enterprise and a Gorn ship, a powerful race calling itself the Metrons force Kirk and the Gorn captain to fight to the death on a empty world, using only their wits and natural materials. The captain eventually finds empathy with the Gorn, surprising not only him but the Metrons as well.

Searching Beta III for survivors of the USS Archon, Kirk and crew discover a society whose citizens appear to be staid and respectable, until the advent of "Red Hour" allows them to run amok. Kirk and Spock avoid being "absorbed" into the "body" long enough to discover the bizarre source of the planet's unity.

The crew discovers a paradise controlled by computer.

The residents of Dodge City are stunned when Matt Dillon feels he can no longer keep law and order and turns in his marshal's badge.