Following Athena's shooting, the 118 gathers at the hospital awaiting news. Meanwhile, the mastermind behind the trafficking ring is determined to silence Athena and anyone who gets in his way for good.

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Buck is faced with his past after an electrical emergency call. Meanwhile, Maddie learns to navigate her working relationships now that she has become a supervisor.

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The 118 must account for every decision made during a recent fire call when the team's actions are investigated for possible mistakes. Meanwhile, Buck works behind the scenes to support his team as he waits to learn if he can return to the station.

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Athena is pulled into a mysterious murder investigation when a man arrives at the station to report his own death. Meanwhile, the 118 races to the site of a car crash involving a mother and son.

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As Buck tries to manage the trauma following his kidnapping on his own, May tries to secure her first law internship without the help of her mother.

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Eddie and Buck's flight back to Los Angeles is cancelled following the National Firefighter Games. Hoping to be home for Hen's birthday, they decide a cross-country road trip is the fastest way, until they get offtrack and Buck goes missing.

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Maddie and Buck are blindsided by some unexpected news that turns their world upside down. Meanwhile, Buck and Eddie head to Nashville when they are selected to participate in the national firefighting games. The crossover continues on 9-1-1: Nashville S01E12 Spirit of the Games (II).

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Eddie faces an unthinkable personal crisis. Hen and Karen spring into action when thrown into a terrifying situation. The 118 hosts a LAFD charity bachelor auction that brings up a few concerns from Buck.

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Harry's first day as a probie proves to be more challenging than Chimney expects. Meanwhile, Eddie and Hen are called into court over a former patient that brings back some old demons.

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As Hen continues to seek out a diagnosis for her mysterious symptoms, her friends and family rally behind her. Meanwhile, Harry hits a wall in his attempts to complete the academy firefighting exam and looks for some much-needed motivation.

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Following Hen's firing, Chimney grapples with his decision and how it has affected the team. Meanwhile, a new AI call center assistant, meant to help, has begun to create more complications, and the 118 must intervene.

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Hen's attempts at keeping her mysterious health issues private are starting to impact more than just her physical well-being. Meanwhile, Buck and Ravi decide Eddie needs a night out on the town.

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Athena must revisit a painful part of her past when answering a call for help. Meanwhile, the 118 takes a big step forward.

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The 118's beliefs are put to the test as they respond to emergency calls involving a Jack-o'-lantern and a few more jump scares than they were expecting on Halloween.

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As Athena and Hen navigate their way back home, Athena will be forced to confront what it means to live without Bobby.

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Athena and Hen face increasing dangers in space as friends both near and far try to get them home safely. Meanwhile, the 118 continues to help victims of the geostorm and falling debris.

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As a geostorm ravages Earth, Athena and Hen's space mission teeters on the edge. On the ground, the 118 battles chaos when technology goes rogue.

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In honor of Bobby Nash's sacrifice, the 118 comes together to dedicate the firehouse in his memory. Meanwhile, when a billionaire tech giant is involved in a life-or-death emergency, the team must race to his aid.

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