A visitor arrives in Equestria, bearing a wealth of knowledge and a troubled past. The Mane 6 are quick to befriend the stranger, who helps them to discover what they truly value in life, and how to achieve it.

But learning to overcome their fears and achieve their desires comes at a steep price, paid by their innocence.

Rainbow Dash seems to be losing her mind, forgetting entire encounters and continually saying things that don't make any sense. Scootaloo gets to see Dash twice as much as she'd ever expected. Twilight Sparkle slips into full on-hermit mode. Applejack just wants answers... and to be with Rainbow Dash.

There's a double rainbow. What does it mean? It's so bright, so vivid....