Elizabeth, a brilliant but frustrated lab technician in the 1950s, is punished after she's caught conducting her own research after hours.

A surprising discovery leaves Elizabeth feeling isolated and alone, but she finds comfort in her new friendship with Harriet.

Elizabeth butts heads with her new boss as she works to make Supper at Six her own. Mad meets a new friend while working on her family tree.

With the fate of Supper at Six uncertain, Elizabeth makes a decision about her future. Harriet prepares for the city council vote.