Once in a while the moon turns red, the sky turns dark and there's a green glowing mist rising from the ground and that's exactly how you begin to perceive the world as you get past the 4-minute mark of the first set of Hell's Circuit. Designed to test the mettle of mortals, this a workout that transforms everyone who does it, even at Level I. The exercises appear deceptively easy but don't be fooled. Those who embark upon this little workout without feeling at least a little trepidation are destined for greatness.