Ring ni Kakero 1: Nichibei Kessen Hen  

Put it All in the Ring 1 - Episode 2: The Pacific War, Put it All in the Ring 1 ~Japan vs. USA Battle Story~, リングにかけろ1 日米決戦編, Ring ni Kakero 1 Episode: The Pacific War, Put it All in the Ring 1: Japan vs USA Battle Story, Ring ni Kakero S2, Ring ni Kakero 1: Nichibei Kessen-hen

After winning the Champion Carnival, Ryuuji Takane was immediately challenged by the U.S. Junior Champion Black Shaft, who appeared before the World Tournament began. Now, Ryuuji and his teammates Takeshi Kawai, Kazuki Shinatora, Ishimatsu Katori, and Superstar Jun Kenzaki must prove their worth as world-class boxers to both Black Shaft and the entire world. However, Black Shaft is not looking for new boxing recruits but instead plans to use a life-timer criminal from Death Row, the leader of the Great Angels, one of America's toughest gangs, a mysterious woman, and the "Dark Emperor of the South" as his opponents. Additionally, Black Shaft has negotiated with Don Juliano, the Italian Junior Champion, in case he needs an additional opponent.