In the fourth installment of the 'Leyenda' saga, Leo San Juan and his gang will take on the Chupacabras.
A group of kids search for a girl in a place named Guanajuato in Mexico.
Leo must enlist the aid of his friends after being fooled by the Charro Negro, resulting a girl to be cast into the underworld.
The little Calavera duo, Finado and Moribunda, must leave their comfort zone away from Pueblo Calaca when a human infant crosses the Eternal Mirror, absorbing energy from a portal that separates the Realms from the living and dead.