When local schools are asked to make a film showcasing the surrounding area, Dani and the rest of St Grizzle's set to work. But Spencer and his mates at the village school are determined to sabotage the work of the smelly Grizzlers. To Dani's surprise, help comes in the form of Granny Viv who has secretly taken up residence in the school's tree house with Downboy the dog. Together they come up with the perfect ghostly video ... but will Granny Viv be able to stay once the competition's over?