A unicorn by the name of Exo unknowingly assists in robbing somepony's home. Sentenced, tried, and found guilty, the mare must trust the stallion who landed her in jail to free her, or face a long prison sentence. Unfortunately, thick iron bars, thick prison walls, and a frozen wasteland cloaked in eternal night are the least of her worries.
To all who have read before, did a little editing. please disregard.