[2] At the tail-end of World War II, Choi Bae-dal is a young Korean man who longs to be able to fly fighter planes.
With their different motives: Bae-dal driven by desire for action and Chun-bae needing to escape from some gangsters, the two Koreans stow away in a truck to the air force training camp.
Bum-soo invites Bae-dal back to the circus where he, and many fellow Korean immigrants, work and where he is attempting to build a decent standard of living for his countrymen.
Meanwhile, Bae-dal has taken to working as a rickshaw driver, honing his fighting skills by defending Japanese women from the rapacious advances of American servicemen.
As word of his notoriety spreads, Oyama's actions come to the attention of the head of the Japan Karate Association - the former Air Force camp commander Kato.
Nevertheless, Oyama continues to defeat every fighter that Japan has to offer, including competitors in karate, judo, ninjutsu, aikido, and kobudo, becoming a sensation in the Japanese media.
Although initially angry and unaccepting of Oyama's offer, after fulfilling the son's wish of being carried to the top of the nearby mountain to view the sunrise, he eventually convinces them that he is a man of honour and not a violent thug.
At the end of the movie, Oyama is shown fighting with a bull, grasping the horns and digging into the ground to stop him, and finally delivering a bone-shattering chop to the center of the top of the head.