British army unveils its latest weapon - a gigantic field gun.
Title reads: "The Boche Buster".
Location of events unknown.
Various shots of a gun mounted on a railway wagon covered by a tarpaulin. We see the British Army crew of the gun removing the cover. C/U of the name plate on the gun "H.M.G Boche Buster". Various C/Us of the barrel as it rises slowly. According to narrator this field gun is one of the world's biggest.
Amendment February 2012: A visitor to the website has provided some more information. This takes place just south of Bishopsbourne, SE of Canterbury, on the Elham Valley Line.