On the late night of July 10, 1156, military meetings are held at both sides, the former Emperor Sutoku and the reigning Emperor Go-Shirakawa, where the two forces react differently on whether to launch a night attack on their enemy or not. On July 11, the battle between the two finally breaks out--the Hogen Rebellion. The battle is not simply a dispute over the Imperial succession, it is also the outbreak of interfamilial conflicts of the Fujiwara, Minamoto and Taira families.
ついに保元の乱開戦！後白河帝（松田翔太）対崇徳上皇（井浦新）に分かれた朝廷内争いは、平氏・源氏の武士集団を巻き込んで京の都を二分する争いに！清盛（松山ケンイチ）は叔父・忠正（豊原功補）と、義朝（玉木宏）は父・為義（小日向文世）と、それぞれ身内同士斬り合うつらい戦いとなる。さらに、強弓の使い手・源為朝（橋本さとし）の参入で、戦況の行方は？勝つのは果たして…。そして「武士の世」が到来する。
