One day at the end of the 1800s, 14-year-old Lise’s life is changed forever. She is the eldest of her siblings, the first in her family to go to school and full of hope and confidence in life. But when her mother goes into labour, it quickly appears that something is wrong. As night falls and the labour progresses, Lise begins to understand that a day that began in childhood might end with her becoming the woman of the house.

The Viking children Røskva and Tjalfe embark on an adventurous journey from Midgard to Valhalla with the gods Thor and Loki. Life in Valhalla, however, turns out to be threatened by the dreaded Fenrir wolf and the god's barbaric archenemies, the Jotnar. Side by side with the gods the two children must fight to save Valhalla from the end of the world - Ragnarok.