Season 1, Episode 29 Operation: Annihilate!

A trip to Deneva reveals parasitic creatures have devastated the planet, driving the inhabitants insane---and one has infected Spock. Aurelan: Joan Swift. Peter: Craig Hundley. Kartan: Dave Armstrong. Zahra: Maurishka. Nurse Chapel: Majel Barrett. Spock: Leonard Nimoy. Kirk: William Shatner. McCoy: DeForest Kelley.

Watch Now

Cast & Details See all »

  • Rating: TV-PG
  • User Rating:3.62 out of 5 (242 ratings)
  • Your Rating:
  • Premise: Capt. Kirk, Mr. Spock, Dr. McCoy and the USS Enterprise crew seek out new civilizations in this seminal sci-fi series. The ship's five-year mission may have only lasted three seasons on NBC, but its impact has proved timeless. By the 1970s, its rabid fans-… (more)

Show More »