Ten years after the Friendship Games ended in disaster, Sunset Shimmer’s self-imposed vigil over Canterlot keeps its survivors relatively safe. But one day a stranger comes to town looking to unearth a secret that Sunset had buried in the past...
"Burninating the countryside... burninating the peasants... burninating all the peoples... and their thatched-roof COTTAGES! THATCHED-ROOF COTTAGES!! And the Trogdor comes in the NIIIIGHT!!!"