Sequel series to Kodai Oja Kyoryu King. The Alpha Gang and the Ancients return. While the parents are talking, they are kidnapped by Gunenco, a member of the Zanjark Space Aliens. This causes the Alpha Gang and D-Team to join forces against the Zanjark Space Aliens in their plot to obtain the Cosmos Stones. Seth later returns as an ally to the Zanjark space aliens. Jark, the leader of the Zanjark, provides the dinosaur cards

Dr. Taylor was on a paleontology mission with his son, Max in Africa. Rex, Max's best friend, joins along as well. When Max had stumbled across some magic stone slabs with images of dinosaurs, the boys and their friend Zoe were being called out by the dinosaurs for help. It seems that an evil organization called the "Alpha Gang," led by the nefarious Dr. Z, traveled back in time to hunt down the dinosaurs so that they could take over the world by using those dinosaurs. It is up to Max, Rex, and their friend Zoe to travel around the world, defeating Dr. Z and the Alpha Gang while hunting down the dinosaurs. (Source: Wikipedia)