[2][10] Taking place right after the events in Guanajuato, Leo San Juan has a nightmare involving a man wearing a black charro uniform.

As they talk, Leo catches sight of a rebel flag hidden in Madujano's bag, but asks no questions after Mandujano shushes him.

Royalist Sergeant Zubieta questions Leo and the other men and seems receptive to their cover story of being musicians on their way home to celebrate a baptism.

He has the prisoners escorted to an abandoned monastery and, despite his men's horror, orders that Leo be executed alongside the rest of the group as his silence makes him complicit.

As night falls, a soldier set to guard the chapel turned storage room grows curious about the painted caravan that was taken into custody along with Dr. Merolick.

Soon, the rest of the royalists catch wind of the blood-sucking creature loose on the grounds and begin desperate efforts to contain it, while a detachment leaves for the encampment to alert Torreblanca about what's happening.

Back in the holding cell, the men's conversation about possible escape is cut short by sounds of screaming and agony coming from outside.

Outside, the men encounter confusion as the soldiers wander around, weapons drawn, as the monster (identified as Chupacabras by Merolick) hunts them down.

Back at camp, Torreblanca is alerted of the situation and orders the bridge that connects the mountaintop monastery to terra firma brought down, even though some of his men remain unaccounted for.

The Natikary and Juanita's people lived alongside each other in peace, mediated by a magical item called the Iyari, until a twisted man appeared.

While Teodora successfully traps Evaristo, along with Finado and Moribunda the sugar skulls, Alebrije continues to evade capture.

The remaining men, along with Leo and Nando, retreat to the monastery where they decide on a riskier plan: they will lure the Chupacabras into the unstable ruins of the capitanía and bring the roof down on its head.

He admits he aspired to fame and fortune by displaying the creatures as freaks as he douses the area in oil, which he sets on fire before escaping down the tunnel.

Teodora appears just in time to help them down the tunnel (as the chapel's door is blocked by fire), where a dazed Nando momentarily gains the ability to see and hear her.

The group is spared when commander Galeana returns at the head of a massive insurgent force and the royalists must divert their attention to the attack.

Alerted by Teodora, Leo takes part of the Iyari medallion from Merolick and escapes back up the mountain to aid the Chupacabras.

Back in the flaming chapel, Leo discovers the Chupacabras' mate and offspring trapped behind magical bars in Merolick's caravan.

Leo finds the missing half of the Iyari medallion in a secret compartment of the caravan and finally puts it together, allowing the Chupacabras's family to break free.

The reunion is nearly cut short by Merolick, who angrily fires the cannon: he hits the base of the church, causing it to collapse with Leo still inside.

"[13] The film has been first teased on Ánima Estudios' social media on 4 March 2016, naming it the "next installment", tentatively titled "La Leyenda de".

"[22] He said that the film's story included the "chupacabras" since the legendary creature has been widely recognized among the Hispanic culture in the United States.