For the longest time, Epona has served as the loyal mount of Link, hero of Hyrule. But one day, she finds out that she's actually from a world inhabited by intelligent, colorful equines. And not only that: Her daughter is one of the six main heroes from that world. But that is only the beginning.

When the worlds of Equestria and Hyrule get into contact after a millennium, lots of hidden conspiracies are revealed. Evil fiends from a time long forgotten emerge and some ponies begin to understand their powers as sages. But the one important question will be: What will Epona choose? Her friends from Hyrule? Or her family from Equestria?