In Hope Hollow, Twilight Sparkle and her friends stumble upon a perplexing puzzle. The once vibrant town and its lively inhabitants now exist in a colorless void, turning their anticipated vacation into a disheartening ordeal. To salvage the Rainbow Festival and restore joy to their newfound companions, the Mane 6 must unravel the enigma behind this bleak atmosphere. Can they succeed in bringing back the much-needed rainbow and infusing life with colors once again?