Star Trek: The Next Generation: 1x21
Symbiosis
Stardate: Unknown. Picard attempts to break an ancient co-dependency between two species on one planet without violating the Prime Directive.
1 - 1Encounter at Farpoint Sep. 28, 1987
1 - 2The Naked Now Oct. 05, 1987
1 - 3Code of Honor Oct. 12, 1987
1 - 4The Last Outpost Oct. 19, 1987
1 - 5Where No One Has Gone Before Oct. 26, 1987
1 - 6Lonely Among Us Nov. 02, 1987
1 - 7Justice Nov. 09, 1987
1 - 8The Battle Nov. 16, 1987
1 - 9Hide and Q Nov. 23, 1987
1 - 10Haven Nov. 30, 1987
1 - 11The Big Goodbye Jan. 11, 1988
1 - 12Datalore Jan. 18, 1988
1 - 13Angel One Jan. 25, 1988
1 - 1411001001 Feb. 01, 1988
1 - 15Too Short a Season Feb. 08, 1988
1 - 16When the Bough Breaks Feb. 15, 1988
1 - 17Home Soil Feb. 22, 1988
1 - 18Coming of Age Mar. 14, 1988
1 - 19Heart of Glory Mar. 21, 1988
1 - 20The Arsenal of Freedom Apr. 11, 1988
1 - 21Symbiosis Apr. 18, 1988
1 - 22Skin of Evil Apr. 25, 1988
1 - 23We'll Always Have Paris May. 02, 1988
1 - 24Conspiracy May. 09, 1988
1 - 25The Neutral Zone May. 16, 1988
1 - 26The Neutral Zone May. 16, 1988