Svein's best friend is a fancy rat named Halvorsen who goes missing during a pet contest, leading to chaos with newspapers reporting a rat invasion. To avoid losing both Halvorsen and the competition, Svein must work to keep his parents unaware of the situation.
Thomas Saraby Vatle
as Svein
Luis Engebrigtsen Bye
as Dan
Celine Louise Dyran Smith
as Melissa
Benjamin Gulli
as Kim
Miriam Sogn
as Mother
Aslag Guttormsgaard
as Father
Rasmus Hoholm
as Magnus
Jan Gunnar Røise
as Trumma
Marie Louise Tank
as Headmaster
Håvard Lilleheie
as Lecturer
Bjarte Hjelmeland
as Snorre
Janny Hoff Brekke
as Dani Dyrebutikk
