Hajime Onchi, labor union leader, challenges NAL management for better conditions. After a plane crash, he investigates corruption with opposition.

Hajime Onchi leads the committee for labor union of national airline NAL. Hajime Onchi and vice committee head, Shiro Gyoten confront management of NAL, demanding better working conditions. The working conditions at NAL is so poor that fatal incidents could occur. Hajime Onchi, always place safety first, is demoted to a remote location abroad. Meanwhile, Shiro breaks away from Hajime and joins the management side to further his career. An airplane crash involving NAL takes place. Hajime Onchi returns to Japan and faces the grieving bereaved families. To resurrect NAL, the government places Masayuki Kunimi as the president of NAL. The new president of NAL calls Hajime to investigate the widespread corruption at the airline. Hajime soon encounters former ally Shiro Gyoten as he attempts to block his investigation.