4 seasons available
In honor of Bobby Nash's sacrifice, the 118 comes together to dedicate the firehouse in his memory; when a billionaire tech giant is involved in a life-or-death emergency, the team must race to his aid.
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.
Athena and Hen face increasing dangers in space as friends both near and far try to get them home safely; the 118 continues to help victims of the geostorm and falling debris.
As Athena and Hen navigate their way back home, Athena will be forced to confront what it means to live without Bobby.
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.
Athena must revisit a painful part of her past when answering a call for help; the 118 takes a big step forward.
Hen's attempts at keeping her mysterious health issues private are starting to impact more than just her physical well-being; Buck and Ravi decide Eddie needs a night out on the town.
Following Hen's firing, Chimney grapples with his decision and how it has affected the team; a new AI call center assistant, meant to help, has begun to create more complications, and the 118 must intervene.
Hen continues to seek out a diagnosis for her mysterious symptoms; Harry hits a wall in his attempts to complete the academy firefighting exam and looks for some much-needed motivation.
Harry's first day as a probie proves to be more challenging than Chimney expects; Eddie and Hen are called into court over a former patient that brings back some old demons.
The 118 hosts an LAFD charity bachelor auction that brings up a few concerns from Buck.
Maddie and Buck are blindsided by some unexpected news that turns their world upside down; Buck and Eddie head to Nashville when they are selected to participate in the national firefighting games.
Eddie and Buck's flight back to Los Angeles is cancelled following the National Firefighter Games; hoping to be home for Hen's birthday, Eddie and Buck decide a cross-country road trip is the fastest way, until Buck goes missing.
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.
Athena is pulled into a mysterious murder investigation when a man arrives at the station to report his own death; the 118 races to the site of a car crash involving a mother and son.
The 118 must account for every decision made during a recent fire call when the team's actions are investigated for possible mistakes; Buck works behind the scenes to support his team as he waits to learn if he can return to the station.
Buck is faced with his past after an electrical emergency call; Maddie learns to navigate her working relationships now that she has become a supervisor.
Following Athena's shooting, the 118 gathers at the hospital awaiting news; the mastermind behind the trafficking ring is determined to silence Athena and anyone who gets in his way for good.
Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.
The disastrous cruise continues when Bobby and Athena respond to the ship's explosion, racing to aid injured passengers; Hen questions her instincts in a life-taking call and grows concerned about Athena and Bobby's whereabouts.
With each moment becoming critical as the ship flips upside down, Athena and Bobby take charge, seeking methods for rescue while navigating efforts to guide survivors to safety; Hen defies protocols in her search for Bobby and Athena.
Upon her return to shore, Athena's son finds himself in trouble with the law; Buck grows envious as Eddie forms a close bond with someone else; the team rescues a woman who's stuck on receiving a rose at an iconic mansion.
The 118 races to the rescue when a birdwatcher is trapped under a tree; Chimney is in for a wild ride when he tends to a drunken driver; Maddie helps a mother and her young daughter when an abusive father shows up at their house.
Athena investigates when the same house is hit with two home invasion 911 calls within hours of each other; the 118 race to the rescue when a man is trapped in an attic; Hen asks for a second chance with her medical school professor.
Hen fears for Karen's life when an explosion rocks her science lab on the day she brings Denny to work with her.
The 118 race to the rescue to a renaissance faire; an overbearing boss is poisoned; Athena fears for May's life when she encounters a disturbed young man; Uncle Buck babysits young Jee-Yun as Maddie and Chimney begin house-hunting.
The Santa Ana winds bring in a variety of weirder-than-usual emergencies; a family dog retrieves a severed hand; a young woman sleep-drives into the station; Denny questions Hen and Karen about his biological parents.
A dry thunderstorm rolls over Los Angeles, bringing in a series of lightning strike emergencies for the 118 and leaves a first responder's life hanging in the balance; Chimney get a surprise from a visiting Albert.
As Buck's life hangs in the balance, he dreams of a world where he never became a firefighter, for better and worse.
A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.
Athena and the 118 race to the rescue when a fading movie star is plagued by a series of near-death experiences.