The whole thing was caught on video. Hold on tight.

A 25-year-old man in England named James Lee has completed over a thousand skydives over the years.  But he almost just had his LAST one. Recently, he and some friends were jumping from over 12,000 feet, when another skydiver accidentally slammed into him in mid-air and KNOCKED him out.

But amazingly, his friends were able to grab onto him and open his chute.  Then he came to right before he landed.  And the whole thing is on YouTube, because it was recorded by his helmet cam.