Lidia leaves New York and returns to Madrid in search of Sofía, who has run away to join the Republicans in the Spanish Civil War.

Lidia's friends — both old and new — help her attempt to force Carlos to call Sofía back from the front lines. Pablo looks for ways to avoid enlisting.

Carlos and Lidia encounter trouble in their search for Sofía. Carlota visits the western front with James, to Óscar's chagrin. Pablo goes missing.

When Madrid falls to the Nationalists, Lidia and most of her friends must face widespread grief and devastation, with long-term consequences.

Lidia's defiance gets her into trouble at the prison camp, while Francisco concocts a plan to free her. Marga confides her secrets to Isidro.

Lidia is desperate to save her imprisoned friend. Elisa discloses Carlos' fate. Marga realizes who betrayed her. Carmen targets Lidia's loved ones.

Elisa reveals a startling secret as more of Lidia's friends are endangered. Sofía turns to an old friend for help protecting the prisoners from Carmen.

An unexpected ally seeking the ultimate revenge helps Lidia try and enact her plan to free all the prisoners from the women's prison camp.

When the final phase of their escape plan is threatened, Lidia, Carlota, Marga and Óscar make a momentous decision together.