A dragon boat enters the greatest paddling challenge of them all - the notoriously dangerous river called The Blymm. Usually paddled by 18 people with a drummer up the front, to keep everybody hitting the water at the same time and a sweep who steers the craft past obstacles, the intrepid team of mostly older people plus one teenager who is someone's grandchild take on the challenge against what appears to be a team of champions. How do they go? How...