Caitlin Kimball

Caroline uses an abandoned bicycle to start a delivery service for their cupcake business, but she soon finds out that Max has never learned how to ride one.

Rainbow and Alicia struggle to fit in at school and stand out at work.

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 mum's side of the family than it is for her dad's.

Rainbow's passion for science deflates when her peers convince her that science isn't cool; Harrison works to mould a testimony from Denise; Santamonica tries to steal the spotlight back after Johan suffers an injury.

In the wake of the Challenger tragedy, Rainbow and her family handle their grief in different ways; Denise realises that life is too short, so she vows to right all the wrongs she's done in her life.