My commanding officer and I have been captured by the Doctor and his muscular male assistant, and are led into their chamber where the device stands waiting for us. There we are tied so we cannot escape and we are informed that we are going to each have our turn in that chair.
The machine, we are told, is designed to strip away our will power and empty our minds. We are to be, one at time, strapped down into that machine, and have our thoughts and memories erased, and we are to be brainwashed into obedient slaves. Our captors boast that it will be useless to try to resist, and that we will ultimately enjoy being made into mindless toys. In the end, they laugh that we will both actually desire to be their grovelling, worshipping sex slaves.
