After recovering the Shwan-dzang's necklace, the D-Team set off to find the third Cosmos Stone. Meanwhile, Sheer is also searching for a Cosmos Stone and ends up causing a local village to think monsters from a nearby volcano are attacking after she sicks her Mapusaurus on some woodcutters who disturbed her sleep. On a volcano, Shwan-dzang is captured by Sheer and her Mapusaurus just as the D-Team catch up to them. Ace manages to rescue him as Chomp fights the Mapusaurus. Max and Sheer activate their dinosaur's armors at the same time. Heat Eruption (the move card Sheer uses on her Mapusaurus) accidentally sets off a volcano eruption causing her to recall her Mapusaurus and the D-Team fall back to the village. When Sheer tries to abduct Shwan-dzang again, Zoe unleashes Paris and Paris uses her bellowing sounds causing Sheer drop Shwan-dzang. Chomp defeats Mapusaurus and the D-Team combine their dinosaurs' attacks (Lightning Strike, Emerald Garden and Biting Wind) to stop the eruption.