When he loses a highly publicized virtual boxing match to ex-champ Rocky Balboa (Sylvester Stallone), reigning heavyweight title holder Mason Dixon (Antonio Tarver) retaliates by challenging the Italian Stallion to a nationally televised, 10-round exhibition bout. To the surprise of his son (Milo Ventimiglia, TV s Heroes) 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!