In episode three, there's a flashback to a young Frieda, Carol, and Barb shortly after they all meet in the same prison decades earlier. Frieda and Carol are doing pretty well for themselves by selling drugs via a hideout they have in the library. Carol is seen clashing with her older sister, Barb, who's a rival drug dealer. The third episode wraps up with young Frieda selling out Carol and Barb by giving both their stash and information about the drug rings to the warden in exchange for being transferred somewhere better.