Incensed by the rule-loving Park Keeper, Snufkin plots a cunning revenge. But when his friends get the blame for his actions, Snufkin must come to their rescue.

When Moominpappa and Moomintroll's "story battle" gets out of hand, a monstrous fish comes to life and Moominhouse is overrun by a wild jungle. Can the storytellers work together to find a happy ending?

Moomintroll's mind starts to play tricks on him when he's left home alone over night for the first time. But his worst fears are realised with the appearance of an all-too-real, nightmarish creature - The Groke!