After the Elements of Harmony settles all the friendship problems, new enemy came out of miles away at the ocean; The Griffon Kingdom. Griffon blames Equestria for the destruction of one of their cities that was destroyed by an unknown attack. Clearly, Equestria wasn't involved of the incident, but someone or pony is responsible for it. Twilight and the Ponies jumps into action to find what was the really cause by whoever started the war. Will the unknown enemy get what he wants? Or will Elements of Harmony stops them on time?

Warning: This may contain spoilers, tons of strong language, and may references shown by Ace Combat 5: The Unsung War, Ace Combat Zero: The Belkan War, Red Tails, Red Dawn, and Call of Duty Advanced Warfare. It also was set to be a reference of World War II, but the one nation stirs hatred between Griffon nation and Equestria, and tries to make an evil weapon of mass destruction.