When Celestia banished Nightmare Moon, she didn't go alone, but with her loyal army. Now they're trapped in an alien environment, with tensions high and the air running out. If they don't work together, their princess will soon be alone after all.
Stories about ponies are stories about people. Every challenge is an opportunity to change. My Patrons let me keep writing, at: https://www.patreon.com/RealStarscribe