After rescuing Princess Flurry Heart from a frigid limbo with the help of the Crystal Heart, Sunny wonders where to go from here with the first alicorn Equestria has seen in centuries.
Tirek returns to his homeland, the Midnight Kingdom to get revenge on his brother King Scorpan. Meanwhile, Flurry Heart is called by the Cutie Map to deal with a friendship problem in the Midnight Kingdom.
While Flurry Heart and her friends are vacationing in Southern Equestria, they meet Somnambula who is studying clues leading to a mysterious temple where she finds an old friend.
Flurry Heart is introduced to Applejack’s twins, Apple Chip and Annie Smith, but they are having a hard time coping with the loss of their late great-grandmother, Granny Smith.
Princess Twilight Sparkle tasks Fluttershy, Discord, Spike and Flurry Heart with reforming an unexpectedly repentant Lord Tirek, who is holding a dark secret about his motives.
Tired of her boring life in the Crystal Empire, Flurry Heart is called to Ponyville. She quickly finds herself thrust into adventure as the townsfolk are threatened by a red, horned monster.
Sunny Starscout's ongoing search for Equestria's ancient past sends her up to the northern arctic, where it is written that a city protected by love once stood.
I was hard on myself during my time as Princess Twilight's student. Nothing but my studies had mattered ever since she saved me from my own magic. When I finally burned out, Equestria was on fire.