Skiing in a local resort, Zoe, Lassie and Harvey meet a reckless young teenager named Drew. The supremely confident older boy convinces the kids to try a run that Graham has recently closed because of the danger of avalanches. The run is steeper than Drew can handle. His thirst for excitement puts him as well as Lassie and the kids in danger. But as the kids work their way into the back country to find Drew, they find themselves face to face with a hungry wolverine... right in the middle of an avalanche zone!