It is 30 BC in an alternate timeline, and the Romans have used a sorcerous rite powered by the time god Saturn to pluck Tarzan of the Apes out of the early 20th century into their own time. They tell the poor ape-man that they will let him return home only on the condition that he assassinate those two troublesome Queens of the Nile, Cleopatra of Egypt and Amanirenas of Kush. Can our two heroines fend off Tarzan’s attacks and then offer him an alternate path to his native time period?
This version of Tarzan, by the way, is my interpretation of Edgar Rice Burroughs’s original character.