With the help of the memory of her late mother and some long-forgotten advice, Sydney rediscovers her love of Christmas for the first time since her mother passed away.

Sydney is excited when she makes the school's first girls fencing team; when she learns her dad helped Coach Carlock, Sydney fears she may have gotten on the team for the wrong reason.

The girls make a pact to go to the seventh-grade dance without dates; Sydney then finds herself in a pickle when Ned surprises her and asks her to the event.

After Sydney is grounded for being late for curfew, she is unable to go to the Pop-Up Cake Museum with Olive and Sophia.

After a field trip to the aquarium, Sydney can't stop thinking about the pollution in the ocean and organizes a protest at school to ban plastics.

Sydney has an accident at school after she gets her first period and is too embarrassed to perform her bass solo at the school concert.