A follow-up show of Kodai Oja Kyoryu King brings back the Alpha Gang and Ancients. During a conversation, Gunenco from the Zanjark Space Aliens abducts their parents. To thwart the Zanjark's scheme of acquiring the Cosmos Stones, the Alpha Gang and D-Team collaborate. Unfortunately, Seth comes back as a supporter of the Zanjark aliens. Jark, the leader of the Zanjark, supplies the dinosaur cards.