Sergeant Rapier Platine of the Royal Guard has an interesting ancestry, shrouded in myth, but a surprisingly modern problem: He's a changeling, but not like most.

Princess Luna, Princess of the Moon and Dreams, has an interesting past, shrouded in legend, but a saddeningly modern problem: She's smitten with a Royal Guard.

Queen Chrysalis, Nemesis of Equestria, Queen of the Equestria Hive, has an interesting scheme, shrouded in the true love of a pink princess and a white unicorn, but an irritating problem: A changeling not in her hive protecting one of the princesses she wishes to eliminate.