The film opens with scenes in New York, United States, Bangkok, Thailand, Panama City Panama, and Tokyo Japan, After the simultaneous killing of four former Spanish intelligence agents involved in the so-called 'Operación Ciénaga,' Zeta (Mario Casas) is tasked by the CNI with tracking a surviving missing agent, joining forces with Colombian intelligence agent Alfa (Mariela Garriga), going on to deal with a mysterious sixth member of the operation, who is code-named Casiel.