state of israel. saudi arabia is changing. but even as it does, there is something else going on. >> massive purge of princes, all arrested by a man who would be king. >> early in his reign mbs imprisoned hundreds of princes and wealthy businessmen at the riyadh ritz-carlton, of all places. >> we drive in under police escort -- >> it was called a crackdown on corruption. >> no one enters here now without official permission. >> what appeared to be cell phone video emerged showing a chaotic scene in one of the world's fanciest hotels. >> and it was a shakedown power play of all his potential rivals. >> i think it was really about control. >> there were reports of torture and one death which the government denied. meanwhile, even as mbs gave women the right to drive, saudi