Production also moved to different filming location since the studio they used is already occupied by another Álex Pina show, Money Heist.

Maggie Civantos, the series main character was reduced to a recurring role due to her commitment to her other show, Cable Girls.

The show's other main cast led by Najwa Nimri, Berta Vázquez, María Isabel Díaz Lago, Marta Aledo, Laura Buena and Alba Flores, who also stars in Money Heist, returned as full time main cast members.

[3] The season revolved on the lives of the Saray (Alba Flores), Rizos (Berta Vázquez), Sole (María Isabel Díaz Lago), Tere (Marta Aledo), Anabel (Inma Cuevas), Antonia (Laura Baena) and Zulema Najwa Nimri as they adopt to the new environment of Cruz del Norte.

New characters were introduced such as a group of Chinese inmates who they immediately knew are the ones who are in control of the prison with Macarena (Maggie Civantos) as their first victim.