James May turns his attention to Britain's history of model airplane building, tracing the hobby from balsa-wood kits and rubber-band motors through to the sophisticated gliders enthusiasts fly today. Archive footage and interviews with lifelong modelers explain why the pastime took hold so widely in postwar Britain, what it taught generations of amateur engineers about aerodynamics, and how competitive model flying became its own subculture with clubs, contests, and record attempts. The film builds toward May's own project: constructing an engineless, homemade model large enough to attempt something never done before, a flight across the English Channel powered by nothing but wind and launch technique. Viewers see the build process, test flights, failures, and the calculations involved in getting a scaled-up glider to hold a course over open water. It is part social history, part hands-on engineering exercise, with May's own attempt supplying the suspense.