Operation Zack'
Season 3, Episode 5
3.05 - Operation Zack
Air date September 28, 1991
Episode Guide
The Game


Fourth of July

Operation Zack is the fifth episode of season three of Saved by the Bell.


Zack sprains his knee before the big basketball game, and while in hospital learns that Lisa is a part-time candy-striper. However, he also learns that he will need surgery to repair his knee and worries that it may go wrong.

Main Cast

Guest Cast


In the episode, Zack accidentally undergoes genital reassignment surgery. Upon waking, he pledges to live his life to the fullest as a woman. Though the storyline was never addressed again (outside of a season four episode where Zack references having a labia), social conservatives were very angry and many stopped watching the show due to its positive portrayal of gender fluidity.



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