Athlete Ego Crossfit's team of instructors could mount a convincing mission to colonize a hostile planet. The staff comes from backgrounds that include the military, organized sports, martial arts, exercise science, nutrition, and firefighting. Together, they blend their varied experience into a hard-hitting Marine Corps–style boot camp and freestyle cross-training program designed to kick-start the performance of amateur, high-school, or professional athletes. Lessons take place in a no nonsense 14,000-square-foot indoor/outdoor facility stocked with Olympic weights, kettlebells, climbing ropes, sandbags, rings, and weight sleds. To fine-tune athletes, the crew supplements sports performance training with nutritional advice.