Moomintroll employs the services of his new friend, a little ghost, to convince Snork Maiden that he is brave. But when his trick backfires dangerously, Moomintroll is the one who needs saving.

The Moomin family's attempts to help a very shy girl only make things worse. Can Moomintroll learn to listen long enough to understand what she really needs?

Moomintroll faces his toughest challenge yet when he wakes up too early from hibernation. To survive the perils of deepest winter, he must first find his primal side with the help of a strange, ancient ancestor.