Every year Stoneybrook Middle School (the whole school!) gets invited to Leicester Lodge in Vermont for a week of winter adventure! This trip sure isn't like any other! A busload of little kids unexpectedly needs baby-sitters. Mary Anne uncovers a ghost in the lodge. Claudia and Stacey both fall in love with handsome French skiers. Kristy is helping her team win the Winter War ... while California Dawn can barely stand up in her skates. And if it doesn't stop snowing, SMS may be snowbound until spring!