Wink of an Eye
Invisible "time-accelerated" aliens take over the Enterprise and attempt to abduct the crew for use as "genetic stock".
Plato's Stepchildren
The crew of the Enterprise encounters an ageless and sadistic race of humanoids with the power of telekinesis and who claim to have organized their society around Ancient Greek ideals.
The Tholian Web
Captain Kirk is caught between dimensions while the crew of the Enterprise works to retrieve him. All the while, the Tholians demand that the Enterprise leave their space.
For the World Is Hollow and I Have Touched the Sky
The crew of the Enterprise rush to stop an asteroid from colliding with a Federation world, but discover the asteroid is actually an inhabited generation ship.
Day of the Dove
An alien force drives the crew of the Enterprise into brutal conflict with the Klingons.
Spectre of the Gun
Having been found trespassers into Melkotian space, Captain Kirk and his companions are sent to die in a re-enactment of the gunfight at the O.K. Corral.
Is There in Truth No Beauty?
The Enterprise travels with an alien ambassador whose appearance induces madness.
And the Children Shall Lead
On a distant planet, Kirk, Spock and McCoy find a scientific team dead, and their children who, unknown to the crew, have great powers at their disposal.
The Paradise Syndrome
An alien device on a primitive planet erases Captain Kirk's memory, and he begins a new life with the planet's indigenous people.
The Enterprise Incident
The crew of the Enterprise are on a secret mission to steal a Romulan cloaking device.