A mother is taken to a hospital and the town council wants to split up her children and put them in foster homes, but the children have a diffrent plan. They set out on a epic journey down thru Sweden, from Lappland down to Stockholm in search of their father. They encounter many people on their journey and make new friends while trying too elude the police.

Sweden, 1782. Jacob, a young noble, somewhat wild and vehement, returns from his studies in France. After his absence, he returns home happy, but is even happier of meeting his beloved sister Charlotte again. However, she has been promised to the Baron Alsmeden, a man of great influence at court, and this fact will awake a feeling like jealousy in Jacob.

The same movie with the same characters, cast and crew as I am Curious (Yellow), but with some different scenes and a different political slant. The political focus in Blue is personal relationships, religion, prisons and sex. Blue omits much of the class consciousness and non-violence interviews of the first version. Yellow and Blue are the colors of the Swedish flag.