Decades into Twilight's reign, despite all her best efforts to preserve peace and harmony, the Equestrian crown came into conflict with the warmongering Emperor Gawkron. In a flashpoint conflict on the border over a naval territory dispute, Gawkron has unilaterally declared war on Equestria. A month ago, the griffons landed on Manehatten with an unprecedented invasion force and quickly took the city.

Craggy, Cola, Clover and Apricot are a search team of ponies that serve in the Equestrian Reserve Guard. They never expected to see frontline combat. But the Griffons are advancing, and their lives are about to be flipped upside down.