The Only Girl in the World is a gripping romance set during the First World War. Dennis is an English soldier fighting in the trenches of the Western Front.

When he is on leave he meets Helene, and it's love at first sight.

But the shadow of the trenches hangs over him. His leave is over in a mere two weeks. When this battle is won; when this war is over, he says he will come back for her.

Dare Helene fall in love with this foreigner? Will she ever see him again? Will he survive the trenches? The world can be ending around you, but if you're in love nothing else matters...