Mount Drasius is cold, very cold, unless you're on the side with the flowing lava. For Derek and Deanna Hughes, and their travel partners, Tobungus and Zorell, the journey is to the cold side of the mountain. They team up with a band of snowball-throwing kangaroos living near a great temple that just might be the hiding place of the fourth moonstone. Eldrack's magic looks strong enough to finally defeat the twins, until a pair of sweaty socks powers up Derek's magic.