Marble Pie is the shyest and youngest of the Pie sisters. With her sisters Maud and Pinkie gone off on their own, it leaves Marble with her parents and her other sister Limestone to tend to the rock farm. With so much work to do, Marble tends to get stressed a lot. One day while in the attic, Marble decides to vent her feelings and frustrations, not knowing someone (or rather something) was going to be there to "listen."

Many years after Twilight ascended the throne, Trixie started to feel a sense of loneliness. Sure, she had her friends, her "fans", and her students, but this feeling was...different, somehow. This was something she had never expected to long for: a romantic relationship. Over the many years working at the school of friendship, only one mare made her feel this way. But she'd never be into her...right?

Captain Flameon Heart of the Crystal Guard must go on a dangerous quest to save the land he calls home. Along with his sister Flurry Heart and his trusted advisor Sunbeam, they venture toward the dreaded Mechanoid kingdom, where King Draxian plans his invasion of Equestria. Along the way, they encounter (and befriend) an interesting crew of characters, and must work together to defeat King Draxian and put a stop to his invasion.