16 minutes doesn't sound like a long time, unless you're pinned under a collapse, unable to move, and running out of air. In that situation, every second becomes an eternity. And there were 960 of those agonizing seconds.

In this episode, we sit down with Clark Glass and talk to him about his MAYDAY. A MAYDAY he was unable to declare for himself. A MAYDAY that he had absolutely no ability to self-rescue or aid in his rescue. A MAYDAY where all he could do was control the space between his nose and his facepiece.