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.