As Los Razos approaches San Pedro, Marcos faces a career threatening scandal; Rika investigates the mayor's involvement in a crime.

Sierra Madre: Prohibido pasar

La guerra

Roberta asks Marcos to uncover the truth about the murder of four young people; Erika obtains evidence of Guadalupe's violent methods.

As Marcos faces complaints from the San Pedro community, Yuri questions him about the death of his adversaries.

After kidnapping Los Razos' leader, Marcos asks Yuri for a favor; Erika gains an unexpected ally.

Amid threats on his life and compromising evidence, Marcos is forced into an alliance with Guadalupe.

While Marcos visits the boss of Los del Desierto, Erika's life is thrown into danger, and Yuri makes a decision about her future.

While Marcos prepares for his mayoral run, Abraham persuades Adrián to participate in Tania Gastélum's campaign.

Marcos denounces the mayor's ties to the Los Razos criminal group as another wave of violence claims more lives.

Businessman Marcos Parra and reporter Erika Trevino witness a dark discovery on the San Pedro border that changes their lives forever.

The story of the elite communities of Monterray, Nuevo Leon.