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.

La historia se centrará en las últimas horas de Quisling, ya que se sienta en su celda en Akerhus Fortress y debe ser responsable de sus acciones y crímenes cometidos en nombre de la ideología nazi.