is attacked by the farmer's dog, and the creature maims the dog, alerting the farmer. Calder and the others reach the barn, trapping the creature inside. Calder explains that the creature is not dangerous unless provoked. However, he provokes it by trying to prod the creature with a pole into a cage-like cart, and the creature injures the farmer after he stabs the creature with a pitchfork. After the creature breaks out of the barn and disappears into the countryside, the police commissioner insists that it must be destroyed. After the Italian government grants Calder permission to capture the creature alive, he devises a plan to ensnare it in an electric net dropped from a helicopter. The Italian police conduct their own pursuit, shooting at it with flamethrowers. Gunfire has little effect on the creature, as it has no heart or lungs. Aware that sulfur is the creature's food of choice, Calder uses bags of sulfur as bait, luring the creature to a secluded site and subduing it with an electric jolt from the net. Later, at the American Embassy in Rome, McIntosh briefs the press corps and allows three reporters to view the creature, which has been placed in the Rome zoo. There, Calder explains that the creature is being sedated with a continuous electric shock so it can be studied. Marisa, who is aiding her uncle, begins flirting with Calder. Suddenly, electrical equipment shorts out and the creature awakens. The creature, now gargantuan in size, battles a zoo elephant and sends the panicked patrons scurrying. Taking their fight to the streets of Rome, the two beasts destroy cars and damage buildings. The creature maims the elephant and continues its rampage. Calder rams the creature with his car and tracks the creature to the River Tiber, where it submerges. Soldiers lob grenades into the river, and the creature surfaces, destroying the Ponte Sant'Angelo. It destroys part of the Temple of Saturn, killing a few soldiers, and heads for the Colosseum. As the creature disappears into the ruins, Calder charges after it with a group of bazooka-carrying soldiers, driving it to the top of the structure. Calder scores a direct bazooka hit. Direct fire from a tank then destroys the ledge the creature is clinging to, and it plunges to its death. A relieved Marisa runs into Calder's arms. Cast William Hopper as Robert Calder Joan Taylor as Marisa Leonardo