"Journey of the Spark" follows the story of young unicorn Twilight Sparkle causing a rift between her friends that forces her to run away, feeling as though her friends can never forgive her.

This bout of dissension and confusion between the girls causes Discord, lord of chaos and disharmony, to once again break free of his bonds, allowing him to plot the end of harmony. Her soul weakened by guilt, Twilight agrees to a deal with Discord that will forever separate her from everyone she ever loved.

Now, in times of great darkness, the girls must venture beyond the reaches of Equestria to find Twilight and rekindle their fractured friendship if they wish to restore the Elements of Harmony once again.