Princess Celestia had banished Nightmare Moon for the next 1,000 years, but peace still had yet to settle in Equestria. The most fanatic of the queen's followers, loyal to the end and with no one to give them orders, begin a march on Canterlot and the Royal Palace. Their objective: to kill Princess Celestia, bring their Queen back, and establish the reign of Nightmare Moon across Equestria. Over ten thousand of these ponies set out on this mission.
Standing between the Princess and those ponies, the elite 189 Royal Guardsponies prepare to fight to the last breath to defend their monarch.
This is their story.
(Based on the Last Stand of the Swiss Guard)