A group of three American photographers ride boldly up in a jeep to a tribal ceremony to take films. When the tribesmen take after them and their jeep gets stuck in the road, Korak has to lead them through a hidden cave to a valley where a lost Roman legion is in control. Taken to the city by an armed guard, Korak and his companions are arrested when Korak mistakenly refers to the cameras as "magic," since the emperor has recently outlawed magic of all sorts. They are taken to the gladiator pits. During the night, Korak bends the iron bars and they escape into the arena, where Korak has to kill a lion unarmed. Korak leads the three men to the secret tunnel to the outside which is hidden in the emperor's pavilion. They return to the overturned jeep, which the tribesmen left adequately unharmed for them to ride back to the city.