This is such a specialized stitch, I don't imagine there's video of it anywhere.
I would think that if you get that dropped stitch back on your right needle, then wrap it with your working yarn as you hold it under and behind the four strands, then bring the stitch to the front of the four strands and knit the next stitch, you'll get what they're looking for.
"Trust the pattern!"
Time flies like an arrow, but fruit flies like a banana.
Hop aboard while we follow the cloud-covered van of knitting harmony, man!! Woooo!! --Hedgehog
IngridKH on Ravelry