An object which looks like a large boiler or distilling barrel appears on screen. A man wheels a trolley with a basin on and places it under the strange barrel. He opens a tap at the bottom and a glue-like liquid starts pouring into the basin. After the basin is filled, he closes the tap and wheels the basin next to a long working table. He pours the liquid across the table helped by another man.This is a sweet factory in Wood Green where London Rock is made. Glue-like liquid is toffee of which the London Rock is made - a mixture of glucose and cane sugar boiled in the strange barrel at 260 degrees Fahrenheit.A man pours a colouring into the toffee and starts mixing it slowly. C/U shot of the man's hand mixing colour into toffee. M/S of the two men making letters. The man wearing glasses is Mr Jerry Toll who has made the rock for 38 years. He and another man (young, possibly apprentice) are mixing strips of red and white toffee into rolls, each containing an individual letter. Rolls with individual letters are then placed into a large roll (a huge one) which, when stretched and cut, becomes London rock.