For eighteen generations, samurai of the Shiba House have suppressed the evil intentions of the Gedoushu, malevolent spirits that enter the world of the living from gaps between buildings and other structures. Now, Takeru Shiba, the youngest head of the Shiba Clan must gather his four vassals in order to battle the Gedoushu under the revived Doukoku Chimatsuri as the Shinkengers. However, as they are joined by his childhood friend Genta, the vassals slowly learn that there's a reason for Takeru's behavior that sets him apart from his predecessors.
Samurai Sentai Shinkenger is the title of Toei Company's thirty-third entry in its long-running Super Sentai Series of Japanese tokusatsu television series. It premiered on February 15, 2009, the week following the finale of Engine Sentai Go-onger, and ended on February 7, 2010. It joined Kamen Rider Decade as a program featured in TV Asahi's Super Hero Time programming block, and following Decade's finale it aired alongside Kamen Rider W. Its footage is being used for the 2011 American series Power Rangers Samurai. The catchphrase for the series is "Authorized by divine providence!!".