Ed and Oucho are travelling all over the country making inventions from bits of old rubbish they find in the back of their van. They are trying to build the Falconator, an all-terrain vehicle with a juicer and custard cannon. It starts off well, until Oucho crashes it. With the Big Big Cheese on their backs, will their general uselessness and lack of science know-how stop them from building the Falconator in time?