Follow the outrageously entertaining adventures of Danny Dingle, the schoolboy inventor, and his best friend Percy as they collect cool stuff for their box of fantastic finds and pull out all the stops to beat the evil genius Gareth Trumpshaw. On Danny's adventures he joins the SCOUTS. (Everyone knows that stands for Spy Club Only for Ultra-Terrific Spies, don't they?) He and Percy wreak all kinds of havoc building the coolest super-sonic submarine ever and of course, the 'Jet of Justice' for a flying competition.