[s1e4] - One Minute

: The episode explores the burden of leadership. Chief Boden must stand by a decision that prioritized the lives of his firefighters, even if it meant a civilian was lost.

: While on a call, Shay is forced to confront her past when she ends up face-to-face with her ex-girlfriend, Clarice, and Clarice’s husband. [S1E4] One Minute

: Severide takes a moment away from the firehouse drama to help an elderly woman in the neighborhood dealing with local harassment. : The episode explores the burden of leadership

"One Minute" is crucial for new viewers because it establishes the crossover dynamic. Detective Voight, who would eventually lead his own spin-off series, is at his most villainous here, providing a stark contrast to the heroism of the firefighters. is at his most villainous here