Tonight on ABC you’ll get to see Regina’s backstory in a new episode of Once Upon a Time entitled ‘The Stable Boy’!

The episode airs at 8/7c, and fans can look forward to some big reveals about Regina’s past and what happened between her and Snow White. Read the description:

Emma works hard to prove Mary Margaret’s innocence in Kathryn’s murder. Meanwhile, in the fairy-tale world, Regina must choose between marrying for love and happiness—defying her mother, Cora—or money and privilege; and the reason the Evil Queen hates Snow White is revealed.

Watch the promo:

This is sure to change the way we see Regina forever!