This anime escapade travels back in time to the Industrial Revolution, when shoguns ruled the land with iron fists (or, rather, swords). Anyone who dared question their supremacy was subjected to brutal punishment and even death. Tired of the oppression, a band of samurais, led by the courageous Ichimatsu, hatch a plan to fight back, armed with weapons never before seen on a battlefield: special "guns" used to dole out justice.