Plot
In 1912, Maud Watts is a 24-year-old laundry worker. While delivering a package, she is caught up in a suffragette protest that includes her workmate, Violet Miller.
Alice Haughton, the wife of an MP, encourages women from the laundry to testify to a Parliamentary committee. Violet offers but is beaten by her abusive husband. Maud testifies in her stead. The women later learn, at a public announcement, that the vote is not to be extended. Maud is caught up in the protest, arrested, and jailed for a week. While in jail, she meets Emily Davison, a confidante of Emmeline Pankhurst.
Maud faces animosity from neighbours and workmates. She tells her husband Sonny that she will stay away from the suffragettes, but attends a secret rally to hear Pankhurst speak. She has a brief exchange with Pankhurst. Again detained, she is taken home by police. This time, her husband throws her out. Maud struggles to see her son George while continuing to work. When her picture is published and she is identified as a suffragette, she is sacked and, past breaking point, she burns the hand of her male supervisor, who has been sexually abusing girls in the laundry for years, including Maud when she was younger, and Maggie, Violet's daughter. The police are called, and Inspector Steed allows Maud to leave, offering her an opportunity to act as an informer. After leaving, Maud writes a letter to Steed refusing his offer.
Sonny continues to prevent Maud from seeing their son, George. This prompts Maud into more radicalism in favour of women's rights. She learns that Sonny has had George adopted by another couple. Maud becomes more radical and is involved in bombing pillar boxes and cutting telegraph wires. She and her comrades are imprisoned after they blow up the empty house of a government minister. In prison, Maud goes on hunger strike and is subjected to brutal force-feeding.
The suffragettes feel that they must do still more to gain attention. They decide to attend the Derby when King George V will be in attendance, planning to step in front of the cameras and unfurl their banners. Before they go, Emily Davison hands Maud a copy of Dreams (1890), a book by Olive Schreiner that has been passed from one suffragette to another. On the day of the Derby, only Maud and Emily attend. They are barred from the area near the King, but Emily decides that they must carry on anyway. While the race is underway, Emily runs onto the track, stepping in front of the King's horse, and Maud witnesses her being trampled to death. After returning to London, Maud retrieves Violet's daughter from the laundry, and takes her to the home of Alice Haughton, who agrees that Maggie can work there instead. Maud later joins in Emily's funeral procession. The film ends by stating that Emily's funeral was reported around the world; and that certain women over 30 in the UK were given the right to vote in 1918, rights over their own children in 1925, and the same voting rights as men in 1928. Scrolling text lists countries that preceded Britain in giving women the vote and others that did so later.