Scientist Ramu and his wife Uma (Nazira) live with their four-year-old son Leher in the jungle where he carries out experiments. He has discovered the elixir of life. Lions attack their house killing him, while his wife goes mad with grief. Ramu’s son, Leher, and their little dog Moti, escape with the help of a half-man, half-ape called Dada (Boman Shroff). Several people arrive in the jungle fifteen years later from the city. One of them is Ramu’s father with his adopted daughter, Leela. Bihari, one of the people in the group wants the formula for his own purpose. The formula was put in a pendant around Leher’s neck by his father before he died. Leher now grown-up and known as Tarzan (John Cawas), has been brought up in the jungle and there are some amusing incidents between Leela and Tarzan, due to his lack of language skills. Tarzan saves Leela from Bihari’s unwanted advances.
Preceded by a legend describing its heroine as a 'Brave Indian girl who sacrificed royal luxuries to the cause of her people and her country', the story opens with a prologue showing Krishnavati and her infant son being thrown out of the house in a thunderstorm by the wicked Prime Minister Ranamal who also killed her brother. 20 years later the now adult son, Jaswant, is hit by a royal motor car and given a bag of gold in compensation. His refusal of the gift attracts the admiration of Princess Madhuri. When the nasty Ranamal, who wants to marry her, imprisons her father the king, she becomes the masked Hunterwali, 'protector of the poor and punisher of evildoers', and performer of stunts like jumping over a moving cartand fighting 20 soldiers at once. She steals Jaswant's prize horse, Punjab, but returns it later. Jaswant chances upon a nude Hunterwali bathing in the river and after a long duel captures her and takes her to Ranamal to claim his reward.
