In the 1960s there were tens of thousands of ice cream vans in England. Today there are just 5,000. Most of them are hand built at a factory in Crewe. The family-run business is 60 years old, but tough economic conditions mean that the company are now having to innovate to keep the business going. As the father hands over the reins to his sons, we'll also meet the workers behind the vehicle that puts a smile on everyone's face.