"Grapes of Wrath" is a fictional account of the Somme battle, colored by the fact that the greater part of it was written in the Somme area or between the Cable's visits to it. This a story of three friends going together through the misery and horrors of war, inspired by the author's ambition of describing the clash from the point of view of an ordinary infantry private and showing how much he sees or knows and suffers in a great battle like that.