Twilight has suddenly begun to feel strange from recalling moments of her adventure where she seen the Equestrian Eliminator, to the point of Starlight's death in her dreams. She wakes up feeling something has triggered a weird transaction, and that the only way to unravel why her younger brother's disappearance to the mysterious masked pony assassin figure, is to find him. But finding a pony that can't be found is tricky stuff, even with Twilight's friends helping to figure out the case.