Young animal-lover Toomai (Sabu) faces a life of impoverished orphanhood after a vicious tiger mauls his father (W.E. Holloway). Toomai finds comfort and friendship in the family's prized elephant, the gentle Kala Nag. But when Kala Nag attacks an abusive trainer in self-defense, the village decides the elephant must die. Toomai plots a daring rescue and sets off on thrilling adventure through the jungles of India, in the hope of finding a mysterious and elusive herd of elephants.