The ‘Jarmies’ are a gang of stars. They are friends who, when they finish twinkling in the night sky, fly down every morning to their treehouse and play in Tim and Holly’s garden. Tim and Holly are ‘real’ children (live action footage) who live and play in the house and garden, getting up to all sorts of fun adventures. Tim and Holly can’t see the Jarmies (no human can) and don’t even know they are living in the garden, but the Jarmies love to see what Tim and Holly are up to and play along in their own special way. A key member of the gang is Zak, who zooms around on his skateboard! Zak is English and the Jarmies always speak to him in English.