While trying to save a bear cub from drowning, Yakari falls into the river and hits his head on a rock. By the time he washes ashore and is found by a distraught bear mother, he has forgotten who he is. The she-bear is convinced that he is her son, turned into a human by the Bear Spirit, and begins to train him for his new life. Can Yakari's friends find him before he disappears into his new world for good?
Derib and Job have been writing "Yakari" stories for over 30 years and have both received lifetime achievement awards for their outstanding work. At the comics festival at Angouleme in 2006, Yakari won the "prix jeunesse 7-8 ans" or "youth prize 7-8 years."