The Robinsons are in the middle of a big kitchen clean-up when Gran phones to say her heating’s broken and she needs to stay over. Biff and Chip are so excited by a Gran sleepover that they abandon their chores and set about creating a full hotel experience for Gran in the front room – with room service and gunky spa treatments, all designed to help her relax. But with Mum and Dad struggling to clean the mess on their own, and Kipper on the prowl for a sea monster play pal, will Biff and Chip be able to get Gran to stay put and take it easy? Show less