Ulysses

Set right before Christmas, young reindeer Niko must deal with his mother's remarriage and his being tasked with looking after his little stepbrother.

Niko the reindeer joins his father in Santa's Flying Forces, but when Santa's sleigh is stolen by an acquaintance, Niko must find it in time for Christmas.

An estranged father and son are brought together by a young crane named Karl as they trace a family of the birds on their migratory journey from Russia to Africa.