There is a lot going on in this work. A fit young guy is about to be manhandled into a very severe bondage sack with lots of straps, which also involves some sort of mouth plug. Apparently there are at least two others who have been similarly trussed up, and they are bolted down underfoot, with their necks locked into head stocks of some sort. Something tells me this new prisoner is going to be kept in storage for quite some time along with the others.