Sunny the squirrel is heartbroken. Her best friend, Milly, who is a marmot, must hibernate for the winter. What will Sunny do without her? Then Sunny meets Fred the snowman, and winter just flies by. Suddenly it's spring again, which brings a joyous reunion with Milly, but a sad farewell to Fred. This simple story of good-byes and hellos shows just how strong true friendships can be.