George Shuttleworth (Formby) is a chimney sweep from Wigan who dreams of winning the Isle of Man TT. Unfortunately, George's attempts to secure a factory ride with the Rainbow Motorcycle Company are unsuccessful and consequently he resorts to entering his own machine the "Shuttleworth Snap", a motorcycle derived from an old Rainbow machine. Whilst running the engine of his machine, George inadvertently knocks the motorcycle off its stand and crashes into the fence of his next door neighbour, Mr Hardacre, who goads George about his dream of winning the T.T.