Rena spots an aurora, and Dino Tyranno assumes that it is the Dragozaurs. Dino Mammoth goes to the Arctic to find its source. Rena and Dino Brachio go to find him, but only to battle the Dragozaurs. Dino Mammoth and Dino Mammoth are shrunk by Drago Wing. The only way to restore them is to destroy the Dragozaurs' life force extractor hidden in the Arctic.
