they drop it right where it's busy, and, very soon after, it detonates. >> logan: mike ritland knows from his own experience on the ground in iraq what it means to have one of these elite dogs on your team. >> ritland: when you step outside that wire... >> logan: like, outside the base? >> ritland: outside the base, it's crossing the border to hell on earth. every step you take is that same feeling of, "the very next step that i take may be my last." when you see these dogs operate in the capacity that they can, using their nose and finding explosives in... in the manner that they do, the... the... that level of comfort absolutely skyrockets in your mind because you know that you've got one of the best-trained, best- equipped, best-capable, you know, working dogs out in front of you that... that has your back. >> logan: we met mike ritland on his 20-acre ranch in rural cooper, texas, where he runs his own company. tell me some of the things that these dogs can actually do. they jump out of planes? helicopters? >> ritland: you can free-fall with 'em. you can rappel with them. you can f

. >> logan: mike ritland knows about dogs. he trains some of america's finest.a rare glimpse inside the secretive world of the most elite dogs.