When Ditzy Hooves meets a terrified young mare in the heart of Ponyville, she cannot begin to comprehend the nightmare that is about to unfold. Soon, the demonic Nightmare Moon will overshadow the land in an eternal night, and a broken knight must lead five mares up from the bottom of society to overcome the greatest threat her world has seen in a thousand years. Each of them carries terrible failures and a lifetime of regret, but it is only by overcoming the weight of the past that the sun can shine in the future.

This is the story of the Twilit Night, and the children who would dare to bring an end to it.