Based on the work of László Arany and ancient Hunnic and Avaric legends, Fehérlófia is a tribute to the old steppe peoples. There are slight differences between Arany's work and the movie - for example, in the movie, Fehérlófia (Son of the White Mare, main protagonist) and Fanyűvő (Treetearer) are the same person. There are also references to ancient origin legends: Ősanya (Progenitrix), Ősapa (Forefather), and the Világfa (World tree).
The story's main character is Fehérlófia (Son of the White Mare), who is a man with superhuman power. He is born as the third son of a horse, and he gains his power by suckling the horse's milk. He listens to old tales, mostly about the Forefather and the end of his reign, caused by evil dragons. After the horse's death, Fehérlófia decided to search and destroy the dragons, who seized power over the world. He met his two brothers, Kőmorzsoló (