Special effects genius Ray Harryhausen (Jason and the Argonauts, Clash of the Titans) brings you one of his earliest groundbreaking films, now available for the first time in vibrant color! When an American spaceship crash-lands off the coast of Sicily, a rescue team discovers that the crew has brought back a gelatinous mass that soon hatches and evolves into a strange bi-ped creature which increases in size rapidly. Soon 20-feet tall, the creature rampages through Rome before being destroyed as it seeks refuge in the Colosseum.