A dragon fossil is discovered by Dr. Gale, and Kaito and Rena go to the excavation site to see it uncovered. As soon as they see it, they recognize it as Gigano Dragon and quickly report the discovery to the Dino Knights. As the fossilized form of Gigano is driven away by Dr. Gale, his truck is attacked by Gomez. He steals Gigano's fossil, but it is soon stolen again by Dark Dragon so he can revive Gigano to fight Dino Tyranno.