In the sequel to Kodai Ouja Kyouryuu King: D-Kids Adventure, the Alpha Gang and the Ancients make a comeback. When parents disappear at a gathering, they are abducted by Gunenco from the Zanjark Space Aliens. This prompts the Alpha Gang and D-Team to unite in a mission against the Zanjark Space Aliens who seek the powerful Cosmos Stones. Seth reappears as an unexpected ally to the alien faction. Jark, the Zanjark leader, deals out dinosaur cards that shape the course of events.