Narcos: Mexico will come to an end after season three, Netflix has confirmed.After renewing the Mexico-set spin-off of the Narcos franchise for a third outing last year, the streaming giant has announced it will be the show’s final season in a new trailer.The third season will also have a female narrator for the first time in newcomer Luisa Rubino, who will play journalist Andrea Nunez, following Scoot McNairy as DEA agent Walt Breslin.