The set tells the origin stories of several planeswalkers - Gideon Jura, Jace Beleren, Chandra Nalaar, Liliana Vess and Nissa Revane - who are going to be playing a big role in up-coming story arcs. We see these characters' home worlds, learn about the joys and crises of their early lives, and discover how they became the multiverse-traveling planeswalkers we know today.