While organizing Ponyville's Hall of Records, Twilight Sparkle discovers a secret Applejack has been hiding for many years.
Twilight Sparkle and her friends gather at the remains of the Golden Oak Library.
With the destruction of the library and the appearance of the new palace, Twilight Sparkle and friends question what the future holds in store for them and for Ponyville.
While organizing Ponyville's Hall of Records, Twilight discovers Applejack's deepest, darkest secret.