feet below the surface digging a horizontal tunnel. >> i felt a little bit of sand on my leg come down. little chunks. then the whole thing all of a sudden just came down. tried to back out when i felt the sand on my legs but it was too late. happened so fast. >> meena screams and shakes his head side to side to keep sand off his face. in the process, he creates a small air pocket, allowing him to breathe. >> he was able to make just enough pocket to have enough air to survive. that's probably what made the big difference. that's what gave us that time to find him and rescue him. >> as he begins to feel the weight of the sand, meena passes out which likely helps keep him alive while everyone on the surface searches for him. >> matt had been down there screaming trying to pump his arms and trying to move his head. one, he could have lost that void space. it could have collapsed in on him. and two, he would have been