This video is hard to watch, but thankfully it has a happy ending. It captures Christopher Jones suffering a seizure while skydiving from 12,000 feet in Australia before his instructor saves him. He described it as the "scariest moment" of his life.

"On the 14th of November 2014 while doing stage five of my Accelerated Free Fall program I have a near death experience. At around 9000ft I have a seizure while attempting a left hand turn. I then spend the next 30 seconds in free fall unconscious," he wrote in the YouTube description [1]. "Thankfully my jumpmaster manages to pull my ripcord at around 4000ft. I become conscious at 3000 ft and land safely back to the ground."

The harrowing video was posted yesterday, March 1, and already has more than four million views on YouTube.