After a volcanic eruption causes floods, members of the moomin family find refuge inside a floating theater.

• Filmkompaniet
• Axiom Films
• Tapani Perttu
• Johanna Viksten
• Jasper Pääkkönen
• Elsa Saisio
• Taneli Mäkelä
• Outi Alanen
• Ilpo Mikkonen
• Jarmo Koski