The fourth season of "El Capo" picks up where the third season left off, with Pablo Escobar at the height of his power. However, as he navigates the treacherous world of international drug trafficking, he faces new challenges and threats to his empire. The Colombian government, backed by the United States, is determined to bring him down, and Escobar must use all his cunning and resources to stay one step ahead.

The first episode of the fourth season, "00 Work," introduces a new dynamic to the series. The title "00 Work" refers to the code name of a top-secret operation launched by the Colombian authorities to take down Escobar. The episode begins with a dramatic scene in which Escobar narrowly escapes an assassination attempt, hinting at the increased pressure he's under.

Meanwhile, the character of Colonel Javier Peña, a Colombian police officer tasked with bringing down Escobar, is introduced. Peña is a complex and intriguing character, driven by a personal vendetta against Escobar. His investigation into Escobar's operation leads him to a key player in the cartel, who becomes a crucial informant.