A pivotal moment occurs early in the season when, during a risky medical procedure to wake him, Aurelio Casillas is finally declared dead after suffering a heart attack, marking a massive turning point for the series.
Meanwhile, in Mexico City, a new prosecutor, , launches a crusade against a rising, brutal cartel known as Los Nuevos Templarios . During a raid, her team finds a signature item left behind—a charred silver ring. The DNA matches Aurelio Casillas, but the world is told he died years ago. Monserrat knows the truth: The Lord of the Skies is alive.