Jur A Story of Pre-Dawn Earth

A young French girl disappears in the jungles of Africa in the early 1930s. A young American adventurer hears about the missing girl and goes in search of her, only to follow her through a time portal, where they end up in the Jurassic period of Earth's prehistory. Here they discover adventure and danger as they search for the Ancient Ones, who had built the time portals, encountering dinosaurs and other creatures that should not have existed in the Jurassic period. They learn that the Ancient Ones were stocking this prehistoric time with animals from throughout the ages. But the old race is nowhere to be found, so the young couple must search on their own, and soon fall in love.