Rocky Balboa is a struggling boxer trying to make the big time. Working in a meat factory in Philadelphia for a pittance, he also earns extra cash as a debt collector. When heavyweight champion Apollo Creed visits Philadelphia, his managers want to set up an exhibition match between Creed and a struggling boxer, touting the fight as a chance for a "nobody" to become a "somebody". The match is supposed to be easily won by Creed, but someone forgot to tell Rocky, who sees this as his only shot at the big time.
After Rocky Balboa and Apollo Creed fought each other in the ring, they were rushed to the hospital. After both were released, Rocky moved on and lives up to his newfound fortune and his Marriage to Adrian. After failed attempts at making commercials, and being laid off at a local meat company, Rocky decides to go back to being a boxer, but Adrian disapproves Rocky's decision as she is concerned for his well-being, and it effects his training, even though his trainer, Mickey Goodmill now wants him to fight right-handed. Meanwhile, Apollo became exceedingly angry at the rude and nasty comments on his fight with Rocky, eager for a rematch with him, Apollo even went public about it. then, Adrian fell into a coma after delivering her and Rocky's baby, after a few days, she awakens and was given the baby, which was named Rocky Jr. Then, Rocky continues his training, and then the fight begins, Apollo is still angry, but Rocky is more determined than ever to win.
Boxer Rocky Balboa enjoys the wealth he has as world-champion. He only fights against easy opponents. Then he is challenged by the arrogant Clubber Lang. Rocky accepts the challenge to proove once more that there is only one world-champion. But Lang wins and becomes the new champion. Nobody believes in Rocky anymore, except one man: former world-champion Appolo Creed. And Creed tries to the stimulate his fighting spirit and get Rocky back in top-form.
The "Iron Curtain" is starting to come down around the Soviet Union under the leadership of Mikhail Gorbachev. A Soviet boxer named Ivan Drago, nicknamed "The Siberian Express", comes to the United States with his wife, a Russian champion swimmer and coach for a guest match. Drago is a superbly conditioned boxer who has been scientifically trained in the USSR, and he & his coach propose a fight against Rocky Balboa. Rocky's former adversary, Apollo Creed decides to take on Drago despite having been out of the ring for several years. Creed unwisely taunts Drago before the match, and after the first round, Drago issues a prophetic warning to Creed: "You will lose." Unfortunately the warning comes true and Creed dies following a pounding by the Siberian Express. When death threats are made against the Russian boxer, he returns to the USSR and states if there is to be a match between Balboa & Drago, it will be in the USSR. To honor Creed's memory, Rocky takes the Soviets up on their challenge and goes to Siberia to train for the match against the "Siberian Express", that will take place in Moscow on Christmas Day, in front of a hostile audience.
Rocky Balboa is forced to retire after having permanent damage inflicted on him in the ring by the Russian boxer Ivan Drago. Returning home after the Drago bout, Balboa discovers that the fortune that he had acquired as heavyweight champ has been stolen and lost on the stockmarket by his accountant. His boxing days over, Rocky begins to coach an up-and-coming fighter named Tommy Gunn. Rocky cannot compete, however, with the high salaraies and glittering prizes being offered to Gunn by other managers in town.
When he loses a highly publicized virtual boxing match to ex-champ Rocky Balboa, reigning heavyweight titleholder Mason Dixon retaliates by challenging the Itallian Stallion to a nationally televised, 10-round exhibition bout. To the surprise of his son and friends, Rocky agrees to come out of retirement and face an opponent who's faster, stronger and thirty years his junior. With the odds stacked firmly against him, Rocky takes on Dixon in what will become the greatest fight in boxing history, a hard-hitting, action-packed battle of the ages.