In the snowy holiday resort of their snowboarding camp, the Kaminski kids meet two children. They appear cool on the outside, but it soon becomes clear that they are in quite a predicament. The Kaminski kids try to help them, but they end up caught in the crossfire themselves and have to flee with Zwockel, their Collie. While escaping through snow and ice, they find shelter in a lonely mountain cabin. However, when they are discovered there, there is no way out...