It's the warmest day of the year, in fact it's even warmer than Spain! The Parc Glan Gwil crew decide to go to Caffi Cai for a delicious lollipop to cool down. But they're faced with a problem... all of the lollipops have melted! Is it too late for Cai Caffi and Derwena Derbynfa to save the day and make lolipops for everyone?