It's considered the discovery of the century in Japan -- the unearthing of a complete fossilized skeleton of an 8-meter long dinosaur. It was dubbed Mukawaryu based on the name of the town in Hokkaido where it was uncovered. The find opened up a new world of dinosaur research in Japan. But it also created another mystery because this land dinosaur was discovered in a location that, eons ago, would have been in the ocean. How did the fossil get there? The amazing answer is revealed in this documentary, using CGI to re-create how dinosaurs lived 72 million years ago.