Trevor Trotter, thirteen-year-old, part time schoolboy and full time inventive- genius, nicknamed Cleva Treva by his schoolmates is packed off by his unsupportive parents, to spend the summer holidays with his uncle, world famous inventor Watty Trotter at "Shambles" his rambling old mansion in the country. Treva is delighted and can't wait to get there, but when he gets of the coach he is the victim of a botched kidnap attempt by an inept and seedy old crook called Inigo Scribs and his gang, Tough guy Morgan Grinder and spotty little twerp Squeeky Nails. Treva escapes and when he arrives at Shambles he learns that the gang are trying to steal his uncles latest world saving invention. The hilarious adventure, which ensues is packed with fun characters, Edwardian ghosts a mad scientist, a power crazed shady Millionaire and a Cluso-like police inspector. The excitement starts as the seedy gang do manage to kidnap Uncle Watty. Treva along with Pippa the feisty and indomitable daughter of his uncles housekeeper, set off to the Rescue with Deep-Fry his Uncles home-made ultra-intelligent talking computer. The fun and excitement continue right to the nail-biting end, where a crazy air-battle over an outdoor pop festival will not disappoint.