Slack-lining is one of the most recent sport types which is developing quite fast. A young Frenchman is a passionate aspirant. In order not to be forced to learn everything arduously by himself, he sets off to visit the master of modern rope dance: Andy Lewis. In the Moab desert Andy Lewis teaches him the basics of high-lining and prepares him for his final exam. After a short time doing the apprenticeship he should be able to cross a 25 metre long line, tightened 60 metres above the ground.