Poppy's new flying invention is put to the test and Poppy reluctantly lets Violette be his co-pilot, but the glider gets wrecked. The Bellflower family rescues two guinea fowls Lizzi and Loti (the aviation contest judges) from their hot air balloon. As the children play in the ballon, Poppy inflates it and the rope breaks causing them to go airborne. Eventually they crash land into Darkwood Forest. After Poppy and Violette make up, all the siblings build a boat to and down the river they unite with their family and rebuild the glider.