Winter has arrived, so beware of the icy weather as you join Bibi Blocksberg on yet another fun adventure! There is something strange going on in the cold… Bibi's friends are all behaving very weirdly; they're getting angry and acting completely out of character! Bibi soon realizes something is affecting her friends, making them dangerous and unpredictable. Will Bibi discover why her friends are all going crazy and save them in time?