His wife is dead and his son hates him, but this old man still has fight in him! When he loses a highly publicized virtual boxing match to ex-champ Rocky Balboa, reigning heavyweight titleholder Mason Dixon retaliates by challenging Rocky 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.

After Apollo Creed is killed by Ivan Drago in a match, Rocky Balboa becomes depressed and becomes determined to get revenge.

Now the world champion, Rocky Balboa is living in luxury and only fighting opponents who pose no threat to him in the ring, until Clubber Lang challenges him to a bout. After taking a pounding from Lang, the humbled champ turns to former bitter rival Apollo Creed for a rematch with Lang.

After Rocky goes the distance with champ Apollo Creed, both try to put the fight behind them and move on. Rocky settles down with Adrian but can't put his life together outside the ring, while Creed seeks a rematch to restore his reputation. Soon enough, the "Master of Disaster" and the "Italian Stallion" are set on a collision course for a climactic battle that is brutal and unforgettable.