Caroline takes an abandoned bicycle in order to start a delivery service for their cupcake business, but discovers that Max never learned how to ride one.
Rainbow and Alicia struggle to fit in at school and stand out at work.
As Meredith (Ari Graynor) uses a class fieldtrip to track down a handsome employee of an Internet company, Principal Carl (David Alan Grier) appoints Ginny (Kristin Davis) to fill in for him while he tags along.
After a teacher tells Rainbow to make sure her hair is "neat" for picture day, she becomes self-conscious and begins a complicated relationship with her hair; Johan and Santamonica struggle with their own hair identity.
When Rainbow is tasked with a school assignment that requires her to trace her roots, she learns that history is more complicated for her mom's side of the family than it is for her dad's.