A quest to learn more about her Quaker roots leads actress Zooey Deschanel to surprising information regarding her family's involvement in America's anti-slavery movement.
Tonight, with the help of TLC's Who Do You Think You Are?, the New Girl star discovers she is directly related to abolitionist Sarah Pownall, a remarkable woman who sacrificed her all to transport slaves to freedom across the underground railroad.
Click the video above for a sneak peek of the brand-new episode!
Who Do You Think You Are? airs Tuesdays at 9/8c on TLC.