Overview: Chilean drug chemist Cockroach brings his product to Colombian smuggler Pablo Escobar. DEA agent Steve Murphy joins the war on drugs in Bogota.
Overview: Communist radical group M-19 makes a move against the narcos, while Murphy gets an education in Colombian law enforcement from his new partner Peña.
Overview: Murphy encounters the depths of government corruption when he and Peña try to derail Escobar's political ambitions by proving he's a narco.
Overview: Despite a new extradition treaty, the U.S. puts more money into fighting communism, creating new challenges for Murphy and Peña in the hunt for Pablo.
Overview: Pablo's extreme methods put the narcos on the brink of war with Carillo and the government. Peña tries to protect his witness, Elisa.
Overview: Peña and Carillo close in on Gacha, while Murphy tries to protect pro-extradition candidate Gaviria from a notorious assassin connected to Pablo.
Overview: Pablo goes into hiding as the political tide turns against him, but he finds a way to strike back. Murphy and Peña finally get the CIA to help them.
Overview: A tragic mistake forces the government to change tactics in the fight against Pablo. But Pablo faces bigger threats from inside his empire.
Overview: The hunt for Pablo seems to be over after he makes a deal with the government, but Murphy and Peña -- and the Cali Cartel -- have other plans.
Overview: Pablo's activities in prison provoke the government into taking extreme action. Murphy and Peña face a situation of their own.