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Rocky Balboa holds the world heavyweight championship, but a new challenger has stepped forward: Drago, a six-foot-four, 261-pound fighter who has the backing of the Soviet Union. This time, Rocky's training regimen takes him to Siberia, where he prepares for a globally televised match in the heart of Moscow. But nothing can truly prepare him for what he's about to face – a fight to the finish, in which he must defend not only himself, but also the honor of his country!