John Wayne is a former football player who tries to box in his spare time. He is already at 50 and his results are several wins against local opponents, but they are not good enough for his coach to be satisfied with. At that time, however, happiness smiles at Wayne. To the world boxing champion, Charles Drederick, his opponent gives up an agreed match for two WBA and IBF titles, and he needs to find a replacement. Drederick declares that he will give any boxer a chance to beat him in the ring and become a world champion. John Wayne, despite his wife's insistence, takes it as a challenge and finds a new coach, a former champion, James Sullivan, and begins to work like a future heavyweight champion, but is it enough? Before the agreed duel of John with the champion Drederick, he will face the Indian champion, Amrit Ravel, to show that he has what it takes to box for the title, John defeated him by K.O. in 7th round. But no one still trusts him and gives him no chance. Although John Wayne knows he has no chance to beat him, he is determined to endure all fifteen rounds of the match. He enters the match as a complete outsider. John's wife Rose is afraid, but in the end she stands by him and supports. John in the ring gives Drederick a lot of work but loses narrowly to points, John is a hero and he doesn't give up. John competes for IBO with Larry Ellis 2 months later, wins K.O. in 5th round and challenges Drederick to retaliation.
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