Princess Celestia calls upon Princess Twilight Sparkle and her friends for an important mission. Something big is coming to Equestria. And if they are to have any chance, they will need the only one who has any knowledge of what they will face.
The mighty Griffin Kingdoms with their new War Wing airships have ventured forth to conquer their neighbors. A desperate plan is born to change the winds of war. Meanwhile a Griffin meets a Zebra.
Twilight accidentally turns her friends into foals - including her - and Pinkie has to take care of them all before they wreak havoc on SugarCube Corner.