. >> 11-year-old paul hartness is trapped, sandwiched between two huge boulders in a crack just a few inches wide. >> oh, poor kid. jesus. >> rescuer tom jones quickly understands the thing the boy needs to do most to survive, keep breathing, is the very thing putting him in even more danger. >> he was like farther and farther down into that crevice with every breath he took. obviously, if the chest cannot expand, you suffocate. >> he's so close rescuers can talk to him, even touch him, but they can't get him out. they know if they don't act fast, they'll watch this child die before their very own eyes. >> i'm trying but it hurts. >> the first thing we did was build rigging below him just to make sure he didn't slip down any farther. >> next, tom smith with the l.a. sheriff's department is able to slip a rope around paul from above, and he starts pulling. >> i was pulling on him so hard that i couldn't believe it. it should have lifted someone twice his size. >> is it doing anything? >> no. >> paul is wedged in so tight rescuers worry if they pull too hard, they'll yank an arm right o