The Crystal Empire is invading the land of Umatochi. Their terrible armies are said to be so vast, they can cause earthquakes with their marching and drink whole rivers dry. They come to Umatochi to enslave the population. All led by their leader: Sombra Khan. A dark sorcerer well-versed in dark magic. Even the shadows obey him. However, the ponies of Umatochi refuse to bow to him. Six samurai of the different pony clans, wielding magic swords, will go forth to take Umatochi back from Sombra Khan before their whole nation falls into chaos.