Momotarō no Umiwashi (桃太郎の海鷲, literally Momotarō's Sea Eagles) is an animated Japanese propaganda film produced in 1942 by Geijutsu Eigasha and released March 25, 1943.Running at 37 minutes, it was close to being feature-length, but it was not the first animated feature film in Asia; that honor goes to China's 1941 Princess Iron Fan, which was 73 minutes long.
小强(尹小骏 饰)与父亲一直居住在山上,直到有一天外公决定将他送到城市接受更好的教育。刚开始,小强难以适应城市生活,渴望返回山上,毫不关心学校和书本。外公失去耐心,采取极端措施绑住他,迫使他踏上学校之路。在学校,他寻找了曾在山上相识的朋友雯雯(许翠雪 饰),但未果。却巧遇到一群武术爱好者,他们对小强展开挑战,小强尝试以山上学到的武艺应战,却遭遇挫折。然而,小强并不气馁,他加入了他们的行列,刻苦练习,最终获得了进步。与此同时,他了解到雯雯家庭的经济状况陷入困境,为帮助她,小强请求外公借钱。外公提出了一个赌约,承诺只要小强能在学业上有所进步,就愿意提供资助。小强坚守承诺,努力学习。然而,正当他看似接近胜利时,债主绑架了小强和雯雯的哥哥,迫使外公筹集赎金。