On 22 November 2017, Netflix ordered the limited series Green Frontier to production. Green Frontier is based on an original idea from Diego Ramírez Schrempp and Jenny Ceballos of Dynamo Producciones.[5][6][7] Guerra is credited as an executive producer of the series, alongside, Diego Ramírez Schrempp, Andrés Calderón, Jorge Dorado and Cristian Conti. The series was directed by Guerra, Laura Mora Ortega and Jacques Toulemonde Vidal and written by Mauricio Leiva-Cock, Antón Goenechea, Camila Brugrés, Gibrán Portela, Javier Peñalosa, María Camila Arias, Natalia Santa and Nicolás Serrano.[8][9] The miniseries premiered on Netflix on 16 August 2019.[10]
In 2018, Guerra released his fourth feature film, Birds of Passage, which was filmed in La Guajira Desert, Colombia. Guerra states that it is "like a gangster film, but something completely different from any gangster film that you have ever seen".[11][12]
Guerra was married to his longtime producer Cristina Gallego. The couple divorced during the filming of Birds of Passage, which they co-directed.[15]
In 2020, Latin American feminist periodical Volcánicas published the story of eight women in the film industry accusing Guerra of sexual harassment.[16] Guerra denied the accusations and vowed to pursue legal action against those who had made them.[17] In May 2021, a court in Bogotá, Colombia, ruled in favour of Guerra and ordered the magazine to rectify its report, as their claims lacked detail and evidence.[18] In response, in the same month, Volcánicas published more details and new accusations in their investigation.[19] After a legal battle, the Constitutional Court of Colombia overruled and revoked all previous decisions, denying Guerra's pretentions (thus confirming the journalists' right to free speech).[20]