The group fights several apparently giant animals and just as they manage to discover that a new fruit they've been eating is hallucinogenic, they are captured by other humans.; Naza and his tribe enter a valley that appears to be inhabited by giants.; The enemy tries to burn Naza and his tribe but Naza tricks them into seeing visions from the fruit, buying time to barely escape the flames. Naza then tries to get the enemy tribe to abandon the fruit, but they refuse and Naza's band must destroy the fruit grove and move on.