Tenoch Huerta is Aurelio Gallardo, engineer, widow, and Susana´s father. He is in charge of the Water Monitoring Unit in Mexico City. As the protagonist, he unmasks the government´s abuse over the aquifers and their scheme to cover it up. His mission is to save his daughter´s life in the middle of chaos.
Alejandra Robles Gil is Lucía Castell, a restless journalist who works on El Centinela newspaper social section; although her true desire is to belong to the National section and to be able to work on the subject that she is most passionate about: politics.
Manuel Balbi is Bruno Fajardo, a clever man who navigates between what´s wrong and what´s right. On the one hand, he is the most trustworthy source of journalist Lucía Castell, and on the other hand, he is the right hand of Isidro Cárdenas, "El Chivo", an infamous crime lord.