At a car-crash scene, bystanders frantically call for Stella as rescuers scramble around an injured woman. A young man who insists "I'm a doctor" steps forward, stops femoral bleeding and directs others to check other wounds. He notices a depressed wound above Stella's Adam's apple and warns that palpating the carotid will worsen subcutaneous emphysema. Under pressure, he orders a cricothyrotomy. Some call him a genius; others doubt him—Dr. Reynolds included—so tensions flare over who should operate. The team prepares to secure Stella's airway, leaving her outcome dependent on following his plan.