As Canterlot High enjoys it's trip out in the Everfree, a second, smaller group of students draws near. Through several mishaps, the two groups find themselves uniting, prepared to face what monsters may come...
Twilight Sparkle wakes up in a place she doesn't recognize. A figure is there, bringing the dark promises of removing an evil tyrant from power and gaining more than she can possibly imagine.
Instead of getting Spike a birthday present, Twilight finds herself trapped in a closed universe. A fictional universe, she believes, where nothing is real. Mike has a different opinion about that.