Twilight Sparkle is faced with a life-altering decision as she becomes drawn to an unexpected source of power-and love. When Princess Cadance and her brother, Shining Armor, ask for her help in organizing a new festival in the Crystal Empire, Twilight agrees, unaware of the dark fate awaiting her.
King Sombra returns to Equestria and captures Twilight Sparkle. He turns Twilight evil with his evil magic. Her friends go on a quest to save her. Can they save her in time before the spell becomes permanent?
King Sombra is back, but not in the way the others think. Celestia has asked Twilight Sparkle to attempt to reform Sombra. After agreeing to her request, Twilight takes in Sombra. As the two unicorns interact more and more with each other, they start to see one isn't as bad as the other. Will Twilight see the good in...