When ponies are unable to wake up from their dreams, it's up to Capper and Luna to work together to figure out what's going on and how to wake them up before it is too late.
A year after the battle of the bands, graduation nears, a familiar face returns, a pure heart is corrupted, enemies become allies and the fate of all reality hangs in the balance.
Sunset Shimmer finally returns home to Equestria to right her old wrongs, unfortunately the sins of the Human World follow her back and put everypony in Equestria in danger.
Twilight wakes up in a hospital near the border of Changeling country, but something about her is...off. She remembers nothing of her adult life, and she seems to be juggling a bit of an alter ego. An evil alter ego.
Three unlikely ponies in Ponyville all have the same dream. But none of them can quite pinpoint what it means. Now with their world getting progressively stranger, they must ban together and save those they care for.