Long-ago the minotaurs invaded and enslaved Equestria sometime after Nightmare Moon was turned back into Princess Luna. The minotaurs forced the stallions into slave labor while the mares was forced into breeding camps for the next generation of minotaurs and this is the story how Rainbow Dash was the slave for the most important minotaur general of the Minotaur Confederacy: Ares the Conqueror of Ponyville.