When three little girls find a tattered hot air balloon hidden away in an old shed they realise they have found something special. The balloon used to belong to their grandmother, and they have heard many stories about the adventures she had in it as a girl.
With a flicker of excitement they realise that, if they can fix the balloon, they could have some adventures of their very own! Working together, they mend the holes in the fabric and soon find themselves soaring through the sky.
However it’s not long before they discover that flying a hot air balloon isn’t quite as easy as it looks, and after a minor collision with a tree they start to doubt their own abilities. Will they manage to fly the balloon safely to Grandma’s house, and what on earth might she say when they arrive?