On their way to.......where?....and why?

Obviously a still from a video (which I haven't identified), probably from near the start. Six young men being ordered to walk stark naked in single file clearly with the aim of getting to a certain location - or being instructed to march around a field - after which they'll be ordered to perform certain activities, the likes of which we'll have to leave to our imaginations.  Maybe it'd be a bit more interesting if they had to progress by in turns the one at the back having to leap-frog over the five in front of him. Except for one who finds it a bit of a joke, for which I hope he'll have to pay, all the others look a bit unsure of the purpose, even apprehensive, as they walk very purposefully to the designated area. Maybe they haven't yet been told what they'll have to do, something which I really wanna see. Hope it's appropriately degrading, 'cos I do know something about that and I do like to have a good laugh.😁