Cavegirl

Rex, an anthropology student, is on a field trip with his science class when he stumbles upon an ancient excavation. Fascinated by the cave, he decides to go in, not knowing it is a government missile testing zone. Suddenly, one of the missiles accidentally explodes, trapping Rex, who falls unconscious. When he comes to, Rex leaves the cave and discovers the place is unfamiliar and his classmates are nowhere to be found. Instead, he meets a beautiful young woman named Eba, who leads Rex to a tribe where everyone is amazed by his modern outfit, but trouble begins just as the romance between Rex and Eba blossoms.