As a mysterious club owner seeks Elvis's help, a familiar voice sends a message about a door that can't be closed — and the key to keeping it open.
Elvis, Keta and Nancy cross into the underworld to find Ventura and bring him home. Elsewhere, a much older Mayakén displays disturbing powers.
There's a monster at large — that's certain. But no one is quite sure how to kill it ... or why its victims' bones are as black as night.
The crew sets a trap to catch the monster with Lupe's help — and the last of the LDD. But Death is looking for Elvis while they wait.
A series of flashbacks to the past reveal what happened to Mayakén, shedding light on his unusual childhood.
With time running out to protect the portal, Elvis and friends join forces to infiltrate the Conclave — and free Mayakén.
To find a girl who disappeared under mysterious circumstances, a young priest puts his faith in a demon hunter who's known for his unorthodox methods.
A room reeking of a Type 2 demon leads the team to an underground fight club, where Nancy strikes a deal with the owner. Keta looks for Lucía's body.
Keta has history with Isaac -- and she's sure it's tied to the case. Mariana gets to know her protector, a woman who claims she can keep her safe.
Using Nancy as the vessel and the claw that was stuck in his back, Elvis performs an ancient ritual to summon the demon — with unsettling results.
A frightened Mariana runs for help, while Elvis seeks wisdom from his father. Keta learns she's much more powerful than she realized.
Mamá Chabela reveals her plans for the future, and Cardinal Morelo asks Ventura to choose sides. Elvis goes looking for the Diableras.
Elvis and his crew race to find Mamá Chabela and the children in time. Elsewhere, a spell has Isaac behaving unlike himself.
When all signs point to the end of the world, the team gathers supplies and prepares to fight back -- or die trying.