The anime was mostly true to the original, apart from the appearance of Nils's pet hamster, and the larger role given to Smirre the fox.

The music was written by Czech composer Karel Svoboda; Yukihide Takekawa provided the soundtrack for its original Japanese broadcast and for some other countries.

One Sunday, while his parents are at church and have left him home to read the day's homily in the family Bible, Nils captures a tomte in a net.

Escaping from the angry animals, Nils scrambles onto Morten's back with his new friend Carrot, and they join the flock of wild geese flying towards Lapland for the summer.

The wild geese, who are not pleased at all to be joined by a boy and a domestic goose, eventually take him on an adventurous trip across all the historical provinces of Sweden.

There was also a Greek DVD (and possibly VHS) movie version (which is based on the German film version mentioned at around the start of the article) released around in 2004 by Digi Time Junior[3] and Panta & Leon (Πάντα & Λέων)[4] and possibly the series around 2008.