25 May 20 Million Miles to Earth
When the first manned flight to Venus, returns to Earth, the rocket crash-lands in the Mediterranean, near a small Italian fishing village. The locals manage to save one of the astronauts, Colonel Calder, the mission commander. A young boy also recovers what turns out to be a specimen of an alien creature. Growing at a fantastic rate, it manages to escape and eventually threatens the city of Rome, forcing the military to take drastic action.