The father of a Finnish family brings home a cute puppy, Stormheart. No one in the family knows anything about the dog. Little by little, the mystery of Stormheart unravels and the dog's new owners learn more about him. They find out that Stormheart's parents had served as guard dogs at the Berlin Wall. Pearl, the 7-year-old daughter of the Finnish family, takes the puppy under her wing and Stormheart, who grows up to the size of a bear, undertakes the task of removing all dangers, threats and obstacles from the path of Pearl.
Ronja Arvilommi
as Muru
Laura Malmivaara
as Mother
Janne Virtanen
as Father
Sara Tammela
as Minttu
Antti Väre
as Romppu
Samu Stenberg
as Father's Musician Friend
Outi Mäenpää
as Dog Psychologist
Mikko Kivinen
as Neighbourhood Old Man
Lasse Karkjärvi
as Chairman of the Residents' Association
Külli Reinumägi
as Miriam
Jari Nissinen
as Risto
Anna Zaharova
as Arda
