enemy territory and root him out. >> the task force leaders approved a bold action, to do what they did not want to do, and strike at el chapo in his fortress city, culiacán. >> you went in with the mexican marines into culiacán. they had to trust him? >> right. >> truth was recording on his cell phone as the operation began. >> this particular operation in february, 2014 was the first time that the mexican marines had ever done an operation, on the ground in this area. because of the danger, the compromises, the risks involved. >> laser focused on their mission, drew, brady and the team had narrowed down the location of el chapo two a one block radius. but, they needed to find the right house, and a specific door to get at him. >> so, we sent our teams down there to do that.