they still had proof of who they had killed. >> the other guys from the other squadron were gonna come pick us up. so, we split up from there. the helicopter was inside. even though the pilots thought they could fly it, my boss made the call that we were gonna leave it there. so, we're gonna try to blow the whole thing up so no one can have any of it. >> the crashed chopper was blown up with a very hot-burning substance that basically will destroy anything in it. it just melts the helicopter down, because it is a classified piece of military equipment with a lot of interesting electronics inside of it. so, they want to make sure they didn't leave anything behind that they don't want people stumbling across. >> so, we rigged some explosives up, and then we blew that up. helicopter came to get us, and then we got on the helicopter, and we flew out. that was a bit more intense because now we're there. people know something happened. they know helicopters were involved, and now we're trying to get back, a 90-minute flight. so, it's almost like watching a race.