While recovering from civil war and suffering from an unsustainable planet, Equestria faces a new age of darkness and uncertainty amidst its scientific advancements..
Realizing that she still suffers from age-old phobias; Luna recruits Twilight and Pinkie Pie to help Celestia overcome one of her deepest fears. Stairs.
Nobody wants you. Nobody cares about you. You're nothing but a burden. A mistake. An alien. An outcast. But suddenly... there's a light... coming from the most unlikely source imaginable... and it's aimed at you...
Upon finding a mysterious door, Derpy and Carrot head to a place unknown to all. What they soon find out too late however, that their curiosity would soon put to risk not only their friends, but the entire fate of Equestria and the world around them.
The Cutie Mark Crusaders decide they need to expand their numbers, but things quickly go awry when their first target begins sobbing on the spot. Sweetie Belle soon finds herself roped into hanging out with the young colt.