The series premiered on July 13, 2018, in the United States and Canada the following day. The series is based on the eponymous children's picture book series by Jane O'Connor. The show follows the adventures of Nancy Clancy, a 6 (and then later 7) year-old girl who loves everything fancy and French.
Nancy Clancy enjoys fancy and French things that range from her outfit to her creative elaborate attire. She plans to teach some fanciness to her ordinary family and friends.