PopCo narrates the adventure of 20-something Alice Butler, a brilliant mathematician and cryptography enthusiast who works at a corrupt company called PopCo that manufactures toys for teenage girls. Alice's controlled life at the toy company gets upturned when she encounters an underground anticorporate society made up of suppressed intellectuals like her. Alice finds a sense of purpose in this group of anarchist revolutionaries, and with her companions, she leads a rebellion from the inside, outsmarting the system in which she's been trapped.