"Elaan of Troyius" is a third-season episode of Star Trek: The Original Series, and was broadcast December 20, 1968. It is episode #68, production #57, and was written and directed by John Meredyth Lucas, the only person ever in Star Trek production history to both write and direct a filmed Star Trek television episode, whether animated or live-action.
Summary: The U.S.S Enterprise ferries a spoiled princess whose betrothal to a royal Troyian is hoped will bring peace to a star system at war.
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