Rosie lives in a playhouse with her colourful group of friends. Together they embark on adventures as they learn the meaning of true friendship. Something has happened to Bluebird - she doesn't seem herself. All she does is sit in Oakley's branches and look to the sky, watching all the other birds migrate. Sensing Bluebird may leave them, Rosie and the others set out to show her what wonders their little world has to offer.