Scootaloo gets some bad news in her early womanhood that changes her life. Filled with grief and sorrow of her past she strives to find content with herself.

The Metro tunnels of Stalliongrad shelter the last remnants of ponykind from the ravages of the Apocalypse. Beneath the earth, ponies struggle to survive against mutants, radiation, and each other. But when an unstoppable threat emerges from the darkness of the Metro, one pony must brave the shadows to save not just his home, but the very existence of his people.