>> you're always gonna have that in the back of your mind but it's what you do with that fear. >> what he did was obsess over el chapo's whereabouts. >> it was nonstop, nonstop. i would dream about it. it totally consumed my life. >> drew hogan's international odyssey on the hunt for el chapo started far from mexico's narco killing fields. a small town in the midwest where he played high school football and dreamt of going into law enforcement. your first shot at carrying a badge was as a local sheriff deputy. >> correct. that was all i wanted to do from an early age, ever since eighth grade. i came from a family of firefighters and was the only black sheep. went into law enforcement, loved working the street. and one day i was with a buddy of mine, a former police officer and he said, "hey, why don't you just go into chicago and test for the dea?" >> the dea, the united states drug enforcement administration.