A young unicorn named Harmony discovers The Tree of Harmony after wondering around The EverFree Forest. Princess Celestia senses somepony there, and summons Harmony to Canterlot Castle, where the journey begins.

After receiving word of a threat against Equestria, Princess Sunbeam must do whatever she can to stop it before it takes over the land.

Button Mash takes Sweetie Belle out on a date for Hearts & Hooves Day.

Princess Celestia and Princess Luna do a little research on their family crest, and discover a new sister.