In a gritty fantasy world where dinosaurs did not become extinct, human history has unfolded side-by-side with the giant reptiles. The greatest of the dinosaur slayers are known as the Predator Defense League. When an act of kindness causes thousands of the beasts to destroy the walls of Monanti City, it leaves culture vs. culture, mammal vs. reptile, friend vs. friend and father vs. daughter.
Wondrous new cultures and technology await the caravan from Monanti - if Lilli and Petra can deliver them safely from a stampeding dinosaur pack. Meanwhile, General Clawson and the cadets must stop predators from retaking the city.