They hurled through space eons before man existed. They burned through the planet's atmosphere and crashed into four corners of the world, bringing chaos, destruction and the extinction of the dinosaurs. And then, as suddenly as they appeared...they vanished. Now, the Monsuno are BACK! And their rise will either spell the ultimate destruction of our planet or launch the courageous adventure of mankind's newest hero, the unpredictable teenager, Chase Suno!