Pinkie Pie, the pony representing the element of Laughter had been cheerful, happy and enthusiastic like always, until something strange started happening. Awful nightmares that made her wonder is she is even worthy of bearing one of the Elements of Harmony. The path in front of her is full of thorns. Fortunately, she found a strong ally who vowed to help her.

It all started innocently, with a simple conversation during one of Pinkie Pie's parties where Shining Armor met Big MacIntosh. The two stallions slowly started liking each other. But, Shining Armor had duties and soon no time to think about love. The so called "Crystal Empire" had returned and he has to defend it, together with his little sister Twilight Sparkle.