Beneath a moonless sky, a foal shivers, hungry and alone. In a snow-covered city, a young mare dreams of the things she left behind. On the coldest night of the year, Princess Cadance finds the family she thought that she had lost.
A young Sunset Shimmer, spending her first Hearth’s Warming in Canterlot as Princess Celestia’s personal student, comes to the terrible realization that there’s not going to be any snow for the holiday. She decides to do something about it.
When an accident leaves Twilight Sparkle seriously ill, Applejack, Rainbow Dash, and Rarity must undertake a perilous journey to find her a cure. What adventures await them beyond Equestria's borders?
Chrysalis sends seven changelings to Ponyville in a clever attempt to break up the Elements of Harmony. Things do not go according to plan for either the changelings or the ponies.