After his father's tragic assassination following the unearthing of the Bronze Bell, Hiroshi Shiba, a skilled racer, inherits the ability to transform into the mighty Steel Jeeg using his father's legacy. With the guidance of his father's digital consciousness and the support of Miwa 'Micchi' Uzuki, Hiroshi embarks on a mission to thwart Queen Himika's ambitions of conquering the world with the power of the ancient Yamatai Kingdom.