At a Lucha Libre convention a legendary championship belt is stolen. Oscar leads the investigation, convinced that Dynamita is guilty.

Uroboros goads Rey into a rule change for the lucha libre finals, the battle is now a race towards the arena and against time| winner takes it all.

A local fair turns dangerous when Uroboros tasks Cascabelle with capturing a tiny dog with the ability to transform into a super natural guardian. Amanda, Oscar and Leo are ready to save him, but Rey Mysterio's help makes things worse.

During a Lucha Libre show, Uroboros takes advantage of a local legend and forces a group of cursed dolls to attack Rey Mysterio. Enygma needs to deal with his separation anxiety in order to help his hero and his friends survive.

Oscar sneaks into the arena discovering Rey Mysterio fighting Raging Bull, transformed by a mask handed to him by Uroboros. Oscar decides not to abandon Rey. To save them both, Rey shares his power with Oscar, transforming him into Enygma.

Osa Mayor and Osa Menor, face a rift when Osa Mayor gets all the attention. Uroboros transforms Osa Menor into a giant bear with ice powers. While trying to stop her, Rey Mysterio and Enygma are helped by a mysterious luchadora, Dynamita.

A rock concert and Rey Mysterio's lucha are derailed when Uroboros attacks using the band. Rey, Enygma and Dynamita's usual moves don't seem to work.

Oscar takes his love for Rey Mysterio too far humiliating Rey's opponent, Nicho. Uroboros transforms Nicho into a villain that can project horrible nightmares. Oscar then makes a mistake that leaves Rey alone against two powerful villains.

Rey Mysterio is at a disadvantage against Artesano Atroz and his army of alebrijes until Enygma realizes the true power of his and Rey's masks.

Rey Mysterio and Enygma try to figure out their new abilities, but they might be making their enemy stronger and bringing Uroboros closer to his goal.