That Which Survives

"**That Which Survives**"
"That Which Survives"
Star Trek episode
Episode no.	Season 3; Episode 17
Directed by	Herb Wallerstein
Story by	Michael Richards
Teleplay by	John Meredyth Lucas
Featured music	Fred Steiner
Cinematography by	Al Francis
Production code	069
Original air date	January 24, 1969
Guest appearances
	Lee Meriwether - Losira; Arthur Batanides - Lt. D'Amato; Booker Bradshaw - Dr. M'Benga; William Blackburn - Lt. Hadley; Naomi Pollack - Lt. Rahda; Kenneth Washington - Engineer John B. Watkins; Brad Forrest - Ensign Wyatt;
Episode chronology
← Previous; "The Mark of Gideon"	Next →; "The Lights of Zetar"
	Star Trek: The Original Series season 3
	List of episodes

"That Which Survives" is the seventeenth episode of the third season of the American science fiction television series Star Trek. Written by John Meredyth Lucas (based on a story by D.C. Fontana under the pseudonym Michael Richards) and directed by Herb Wallerstein, it was first broadcast January 24, 1969.

In the episode, the crew of the Enterprise visit an abandoned planet guarded by a mysterious woman.