Ashwell, Baldock, Hertfordshire. "The sporty Grass Track Brigade - in full cry - " L/S of motorcyclists being pushed off at the start of a race. Various shots of the boys racing around a grass track. "And here come the rivals - Pat, (7 1/2 years) Leslie (10 years - on car) and Raymond Pullin (13 years) in a miniature race of their own." Two youngsters sit astride motorbikes, the other in a miniature racing car. C/U of the racing car - pretty cool! The boys are pushed off and they begin their race. Various shots of them speeding around the track. "Pat's tiny bike is called "Tom Thumb" - but it can reach 30 miles an hour, all out!" Camera follows the boys around the track. Crowds line the track.