The U.S.S. Enterprise finds the wreckage of the S.S. Beagle, with no survivors, orbiting near the Planet 892-IV. When Kirk, Spock, and McCoy beam to the planet's surface, they find a disheveled group of "sun worshipers" trying to escape being caught by the local authorities. They are captured, along with the landing party, and taken to the city which looks very much like Earth's ancient Rome.

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