Altagracia who used to terrorize the inmates as prison guard is now one of them. Zulema and Saray who was once bestfriends are now each other's enemies. Sandoval is the new Director of Cruz del Norte, who enforced violence to tame the inmates making the prison dangerous more than ever. We see Saray as a mother who would do anything for her child and Zulema who would later be revealed to be a mother. Meanwhile, Sole is revealed to have Alzheimer's disease. Macarena (Maggie Civantos) finally awakens from her coma. When the premise of the series was first announced, it was immediately compared to American television series "Orange Is the New Black" and some media accused it of being a mere copy. However, when the pilot episode was screened for critics, they noted both series are different in tone as "Locked Up" is mostly a thriller while "Orange Is the New Black" is a comedy-drama. Besides the comparisons, the series received favourable to good reviews with Bethanh Wade from Film Daily saying, "the minute you start Locked Up, be prepared for this train to start and never stop." Critics praised the Cast's acting and fast-paced storyline. "The acting is strong throughout, the characters engaging and believable, the script is fast-paced and captivating, and it looks beautiful on screen with some creative and imaginative camerawork." Rebecca Nicholson from the Guardian says that the show is "tremendously silly and fantastically taut thriller that carries itself at a breathless pace." "This is violent – brutally so – and very graphic in its portrayal of life in a women's prison. But utterly brilliant at the same time. It is dark with a constant air of threat and menace running through it. I love it." from Martin Howse of Entertainment Focus. After two seasons, Antena 3 cancelled the show, however, on 6 July 2017, Fox Spain announced they had picked up the series for a third and fourth season, with fourth as the last of the series. Season 3 premiered on April 23, 2018. And the fourth and final season was released in December 2018. The show was shot in Spain. During its four seasons run, the show collected a total of forty-four (44) nominations with thirteen (13) wins. Season 1 was broadcast in the United Kingdom from 17 May 2016 on Channel 4's Walter Presents video-on-demand service. In 2017, Prime Video acquired the first two seasons for the United States, and in 2018, Hulu acquired the first four seasons for Japan.