London, 1970: Sally Alexander (Keira Knightley) , a divorced mother of a young daughter, is fed up with constantly being treated unfairly just because she is a woman, so she joins the newly formed "Women's Liberation Movement" led by the rebellious Jo Robinson (Jessie Buckley). The newly formed group discusses how to draw attention to social injustices, while at the same time, the contestants in this year's Miss World pageant arrive and prepare for the event of the year—some 100 million viewers worldwide will watch the popular show, hosted by Bob Hope (Greg Kinnear) , on their television sets. While underdog Miss Grenada (Gugu Mbatha-Raw) and her competitors practice smiling for the cameras and posing in swimsuits, the women set their sights on a first goal: They want to boycott the live show and make a statement that will be heard around the world. But the crowning of the new Miss World will also change the world…