Madrid, 1936. Aurora has just come of age and works as a nurse in a troubled city that resists the fire and bombs of the war. In this times of violence, she decides to contribute in the Republican front and begins to write letter to a young soldier, Teófilo, thus becoming – like many other women of the time – a war godmother.
In each letter, the young men will find a refuge in which to express the fears and secrets they cannot say aloud while discovering a love they never imagined. However, in a war full of intrigue and espionage, where everyone is a suspect, the written word can be the most dangerous weapon…
When years later, isolated in the silence of the postwar period, Teófilo finds out that Aurora is still alive, he does not hesitate to try to find again the person who, amidst the fire and gunpowder, made love, calm and peace blossom in him.
This story is a tribute to all those women who took the word as a rifle and managed to grow in the line of fire the strength and hope of the soldiers.