《Teppachi! 铁钵 钢盔》这部电影讲述了一个高中时代橄榄球部的王牌选手因过度比赛而受伤，被指责后孤立无援地退役的故事。毕业后，他过着没有固定工作的无所事事的生活，直到有一天，因为吵架而失去工作，被迫搬离公寓，陷入绝境。然而，在这种情况下，一个男人向他介绍了一份适合他的工作——成为“陆上自卫队”守护国家和平与安全的工作。最初，宙对此持拒绝态度，但在面临无法生活的困境下，他半推半就地加入了陆上自卫队的候补人员。

在进入自卫队接受残酷训练的过程中，宙逐渐结识了重要的伙伴，培养了友情，有时也涉足爱情，积累了各种经验。他逐渐意识到人与人之间联系的重要性，并逐步成长起来。这个年轻人以消极抱怨的心态加入了自卫队，但当他成为真正适合戴上自卫官帽子的“Teppachi”自卫官时，不成熟的生活变成了真正的“Teppachi”人生！

The movie "Teppachi! Iron Bowl and Steel Helmet" tells the story of an ace player in the high school football club who died of excessive competition. Stories of being injured, of being blamed and of retiring in isolation. After graduation, he lived an idle life without a fixed job, until one day, he lost his job because of a quarrel, was forced to move out of the apartment, and fell into desperation. However, under such circumstances, a man introduced him to a job that suits him-a job of becoming the "Ground Self-Defense Force" to protect the peace and security of the country. At first, Zhou refused this, but in the face of the predicament of not being able to live, he half-heartedly joined the Ground Self-Defense Force as an alternate.

In the process of entering the self-defense force to receive brutal training, Zhou gradually got acquainted with important Partners, cultivated friendship, sometimes dabbled in love, and accumulated various experiences. He gradually realized the importance of the connection between people and gradually grew up. This young man joins the Self-Defense Forces with a negative and complaining mentality, but when he becomes a "Teppachi" Self-Defense Officer who is really fit to wear the Self-Defense Officer hat, his immature life becomes a real "Teppachi" life!