Cotton Cloudy might not be the richest or most popular filly in Ponyville, but she has a happy life nonetheless. In particular, she enjoys spending time with her brother, Blizzard Wing, the one pony she looks up to among all others.

But one day, tragedy strikes and Blizzard Wing is killed in a horrific accident, leaving Cotton Cloudy small, confused, and worst of all, alone. Confined to her internal darkness, she has no idea of who she is anymore.

But then a massive storm threatens Ponyville. Can she finish what her brother started and move forward, or will she stay sulking in his shadow forever?