Doctor Da Vinci's latest assignation is something not to be sneezed at as Rain, Stone and Sean are asked to chill out in the coldest place on Earth! Tasked with tracing the trail of an absentee penguin population, our freezing friends soon discover that there's more than mother nature's giving them the cold shoulder to worry about. What is the reason behind Dr. Hopkins' dogged determination? When penguin finding turns personal will our Xplorer's be able to handle a truth that"s out of this world? Join them, as they uncover the SNOWBOUND SECRET!