It's the early 1980s, and people across the US are connecting online for the first time. Internet service providers are setting up bulletin boards and chatrooms (also called forums, or "bands" after CB radio) for their customers, allowing people to discuss hobbies, politics, work, life and love with like-minded people they might never have met otherwise. Margot gets hired to be the Community Manager at a new online community. As women in the chatrooms find themselves talked over and preyed upon by men, Joan comes out of her shell and requests a forum for women only. She and Margot emerge as the leaders of a close-knit group of computer-savvy women, and bond over their newfound sense of purpose and possibility.