‘There are no goats involved,’ chuckles one contributor at the start of this five-part series delving into the mysterious world of the Freemasons.

As the United Grand Lodge of England celebrates its 300th anniversary, the famously secret-filled organisation is opening its doors (well, most of them) to cameras.

In this first programme we meet James, who is preparing to follow his proud father into Freemasonry, and Tony, who is being promoted to Provincial Grand Master – the top Freemason in a county.

A fascinating look at the ritual, symbolism and history of an organisation many of us know little about.