Vin Marco & Nate Christianson are in full workout mode in part 3 of this muscle-throbbing documentary. As these two muscle titans work out harder, their verbal encouragement grows stronger. Combined with the sweat, bulging veins and surreal muscle pumping youíll be mesmerized by this display of pure testosterone and confidence. At the end when these two head to the locker to strip and pose their pumped muscles you may not be able to handle it.