The Purge is a workout that will prepare your body for levelling up. It doesn't just target virtually every major muscle group it also loads them with exercises that demand high intensity. That challenges your VO2 Max and it gets you in the sweatzone quickly. You're kinda getting the implications of this workout's name. Go hard, go fast and bring your knees high on High Knees. Don't forget to be on the balls of your feet throughout the workout, don't let your heels touch down now.