The focus of the documentary was on six notable toys during the original series of episodes, including their history, each of which were chosen to see if they could be possibly capable of achieving a remarkable goal in real-life on a grand scale.

It's time to use them to bring people together and achieve greatness...[2]The scale of the projects meant that the production team had to recruit specialists to provide technical assistance, including architects, designers and engineers,[5] while in others, large teams of volunteers were required to handle construction work - an example of this was the involvement of a project involving model trains, which required volunteers to help set up a vast line of track along with connecting power supplies to it, and then dismantle it afterwards - and so appeals were made in local papers for assistance by programme researchers.

An attempt to sell it to the Legoland theme park in Windsor fell apart, after the cost of dismantling and reassembling was judged too expensive,[11] The house could not remain at its site at a vineyard because the space was needed for vines and there was no planning permission.

After creating a design that is accepted for the show, the project soon has the momentous task of recruiting volunteers to make flowers, decorations and an entire tree, and providing a secure storage space for completed works of art.

The project is soon deemed a failure, when each train slowly breaks down in succession across the day of the challenge, due to extensive overworking of their model motor component.