This is Episode 10: Foundations IX — Planning Workshop: IMRT, VMAT, Protons, and OAR Priorities.We’ve arrived at the “dark room” episode. Up to now, you’ve made clinical decisions: diagnosis, stage, intent, dose, and fractionation. Now you’re at the console, staring at a CT and a dose cloud, and the boards are essentially asking: “Do you know what matters, and can you keep the patient safe?”