Join Dusk Wing, a thestral whose hometown was destroyed by the forces of King Sombra and Queen Nightmare Moon when he was young; Dusty Cloak, a mysterious pony with a dark secret; Obsidia, Dusty Cloak's longtime friend, who has a secret of her own; Field Remedy, a pegasus forest ranger with medical experience; Surprise Party, a unicorn who (surprise, surprise) loves to throw parties; and Autumn Glory, an earth pony and granddaughter of Apple Bloom as they go on a quest to locate and retrieve the Elements of Harmony and depose King Sombra and Queen Nightmare Moon.