Sergeant Lucía Gutiérrez (Maribel Verdú) and U.S. Army special agent Magaly Castillo (Mariela Garriga) delve deeper into the interconnected investigations of a local teacher's suspicious suicide and a missing American soldier. Their pursuit uncovers hidden secrets within Morón de la Frontera, intertwining the lives of residents and U.S. military personnel, revealing a complex web of crime and deceit.