Follow Carlos Mendez, a senior TSA officer working the overnight shift at O'Hare International Airport, as he maintains vigilance during the crucial hours between international arrivals. We examine the complex security protocols that keep air travel safe during vulnerable overnight hours, the heightened responsibilities of skeleton crews, and the unique challenges of maintaining alert focus when the body craves sleep. The episode reveals the hidden world of overnight aviation security, from managing unexpected diplomatic arrivals to coordinating with global security partners across time zones, while exploring how these essential workers maintain their edge when the stakes are highest.