Twilight Sparkle discovers a spell that she has never heard of before which is a "Dreamscape Spell." She uses the spell to enter into her own dreams to see what she dreams about, then she enters into her best friends dreams so she see what they dream about. Afterwards, she decides to take a peek into Princess Celestia's dreams to see what she dreams about. First Twilight sees her teacher's most recent dreams, and then she goes deep into her subconscious and sees her younger self and a baby Luna. Not only that, she also sees two others with them; a majestic white Earth pony named White Knight, and a mysterious black Alicorn named Black Knight. She basically starts learning about how the world was like before the founding of Equestria, the origin of the Elements of Harmony and that's not all… She also meets a few new faces and a couple of old faces along the way. Meanwhile, Spike sneaks out of the library/Twilight's home and went to go see McAllister for questions that need answering.