Mr Stevens and his son Nigel make model tramways in their back garden.
M/S of a man working on a model of a tram. There are several completed trams, some are seen in the background. C/U shot of the man's hands working on the wheels of the next model tramway. C/U shot of he man's face as he works. M/S of a boy watching the tram moving along miniature tracks. The man comes and brings the tram he was working on and places it on the tracks. M/S of the man and the boy setting the tram on the track.
Mr Jackson Stevens and his son Nigel are having all the advantages of the tramways without the noise nuisance. M/S of young Nigel going into 'Depot' made out of garden shed (probably). C/U shot of Nigel's hands operating the command joysticks (presumably regulating tracks). M/S of Mr Stevens looking at the tramway circling across the track occupying most of his back garden. C/U shot of the two tramways (one is red and another green) on the track. Red tram overtakes the green one (which remains static) and travels across the bridge (viaduct). Another tram passes in the other direction.
M/S of the tram riding into the depot where Nigel directs it further. C/U shot of the tram sitting next to the boy's face. M/S of the tram moving forward. High angle shot of the tram moving through (what may have been) a water drainage canal. L/S displaying (for the first time) the entirety of the garden tramway. M/S of the trams moving across the tracks, travelling through the garden. M/S of the two trams (red and white) stopping one next to another. M/S of Mr Stevens looking at the moving trams. M/S of Nigel in the depot looking at the moving trams.
Something has gone wrong - informs a voiceover - but not for long. Nigel and Mr Stevens fix it without difficulty. A little special fixing wagon comes, collects the problem tram and takes it off the track. M/S of the problem tram being pulled away by the little brown tram.