Operation: Annihilate!

Episode Summary & Review

Summary

Approaching the planet Deneva, the Enterprise encounters a private spacecraft whose pilot is flying desperately into the sun, the apparent act of a lunatic. Spock reveals disturbing news: a pattern of mass insanity that has spread across the galaxy in a nearly straight line, the current end of which is Deneva. The landing party discovers the horrifying truth – and one of them becomes its victim. Now the crew must devise a cure before Spock dies, or is driven hopelessly insane.

Our Take

A grim, sweaty hour that leans hard on body horror for 1966, and the creepy flying parasites still hold up better than you’d expect. Spock’s ordeal gives Nimoy some of his best material this season, though the resolution arrives a bit too conveniently. The pacing drags in the middle lab scenes, but the atmosphere and the emotional stakes make it easy to forgive.