Javier Peña is an officer of the US Embassy who works for the DEA. He was sent to Columbia to aid in the narcos investigation going on in Medellín. His main focus is Pablo Escobar- the man proclaimed as "Paisa Robin Hood" during his run for Columbian Congress- who ran the entire drug trafficking operation. Though his work is important, it is never Javier’s first priority. He tends to find enjoyment in simpler things— cigarettes and sex, while his partner, Steve Murphy, is the total opposite.