National Geographic will make the two-hour documentary GENDER REVOLUTION: A JOURNEY WITH KATIE COURIC available to stream for free, beginning today, Tuesday, February 14, for one week.

GENDER REVOLUTION: A JOURNEY WITH KATIE COURIC explores the rapidly evolving complexities of gender — from the moment we are born through our twilight years. To better understand this complex social and scientific issue, Couric crisscrossed the U.S. to talk with scientists, researchers, activists, authors and families to learn more about the role of genetics, brain chemistry and modern culture on gender fluidity. Her wide-ranging interviews included a conversation with Gavin Grimm, the transgender Virginia teen whose lawsuit seeking equal bathroom access is headed to the Supreme Court on March 28. With discussions that range from the scientifically enlightening to the deeply personal, Couric’s unflinching search for truth sheds light on countless untold stories of struggle, understanding, ignorance, hurt and love.

“I’ve always hoped this documentary would be a spark to ignite conversations in every corner of the country around the evolving landscape of gender,” said host and executive producer Katie Couric. “National Geographic is helping to push that goal forward by making it so broadly available to audiences.”

The stream will be available on National Geographic’s website, YouTube channel, Facebook page, Apple TV app and TV Everywhere mobile apps.