Spike ,Luna,big Mac,Derpy,and trixie have to save equestria from a paln discord has had for fifty years wich killed princess celestia and made the main 6 disaper with the elements of harmony.wali discord has rulled the land are five main characters have been made the leaders of a rebel group called leagacy remains which all of the cristal empire and pony ville have joined in hopes of stoping discord or findin the main 6 and the elements of harmony.