元禄忠臣藏的事迹流芳百世，在47名义士之中，寺坂吉右卫门（佐藤浩市 饰）是仅存世间的一人，他受大石内藏助（片岡仁左衛門 饰）的嘱托负责将47义士的事迹流传世间，同时肩负起照顾遗族的重任。时间飞逝，一晃16年的时光过去。在准备忠臣藏第十七回法事的途中，寺坂偶然遇见当年的盟友——讨伐吉良上野介（福本清三 饰）前夜逃亡的濑尾孙左卫门（役所広司 饰）。如今的孙左摇身变成一名古董商人，与美丽温柔的女孩可音（桜庭ななみ 饰）生活在一起。他与可音既像父女，又如恋人，而她正是孙左不惜背负骂名苟活人间的唯一理由……

　　本片根据池宮彰一郎的同名原著小说改编。

Chushingura is a famous story in Japan on 47 samurai in the Edo period who avenge their lord against Lord Kira, who was the cause of the master's death. This drama based on Ikemiya Shoichiro's book focuses on Terasaka Kichiemon, the only survivor of the 47 samurai. After raiding Kira's residence and taking avenge, Terasaka receives an order from Oishi Kuranosuke, the leader of the group to escape from the site. The rest of the samurai is ordered to commit seppuku by the Shogunate and kill themselves. Living in disguise and receiving contempt from others, Terasaka struggles to follow Oishi's order. He works to pass down the true intention of avenge to the next generation and at the same time looks after the families of the 46 members.