Time machines have always existed in the bedrock of the Earth, though changing the past is nearly impossible (the Great Man Theory being bs). Enter some alt-right nutjobs determined to prove the idea wrong by changing the course of the women’s rights movement. A feminist group (including a trans girl!) researching the past realise that if they are in the past while history is changed, they retain their memories of the old timeline. Together they piece together the plot to change their history and fight back.