Explore the high-pressure experiences of police officers, paramedics and firefighters who are thrust into the most frightening, shocking and heart-stopping situations. These emergency responders must try to balance saving those who are at their most vulnerable with solving the problems in their own lives.
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see all options Availability data: JustWatch
- Seasons
- 10
- Episodes aired
- 142
- Latest aired
- S09E18
- Total runtime
- 4d 6h
Timeline when each season aired
- Season 1 January 2018 – March 2018 10 episodes
- Season 2 September 2018 – May 2019 18 episodes
- Season 3 September 2019 – May 2020 18 episodes
- Season 4 January 2021 – May 2021 14 episodes
- Season 5 September 2021 – May 2022 18 episodes
- Season 6 September 2022 – May 2023 18 episodes
- Season 7 March 2024 – May 2024 10 episodes
- Season 8 September 2024 – May 2025 18 episodes
- Season 9 October 2025 – May 2026 18 episodes
- Season 10 October 2026 1 episode
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S04E01 The New Abnormal
January 18 · 43min find the promo
Show synopsis
The Hollywood Reservoir dam breaks. The team adjusts to life during the pandemic.
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S04E02 Alone Together
January 25 · 43min find the promo
Show synopsis
In the aftermath of the dam break, massive mudslides wreak havoc throughout Los Angeles.
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S04E03 Future Tense
February 1 · 43min find the promo
Show synopsis
The 118 race to save a man under siege by his high-tech smart home, and a yoga teacher who has lost her vision. Athena hunts down a bank robber disguised by Covid protocols. Meanwhile, Buck confides in Maddie, Hen clashes with her antagonizing medical school lab partner and members of the 118's crew prep for an out-of-state mission.
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S04E04 9-1-1, What's Your Grievance?
February 8 · 43min find the promo
Show synopsis
Athena investigates a mysterious murder during a neighborhood block party and the 118 rush to save lives endangered by a bomb threat. Meanwhile, Chimney has a hard time keeping secrets when Maddie and Buck's parents come to town.
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S04E05 Buck Begins
February 15 · 43min find the promo
Show synopsis
The 118 race to save the lives of workers trapped in a five-alarm factory fire. Meanwhile, Maddie reveals a painful family secret that causes Buck to confront his childhood and answer why he is the daredevil he is today.
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S04E06 Jinx
February 22 · 43min find the promo
Show synopsis
The 118 believes their fabled firehouse superstition has come true when they have the day from hell with a never-ending series of bizarre emergency calls - Athena is in hot pursuit of a 118 firetruck; a man who duct-taped himself to freeway billboard, a garage full of fireworks and a restaurant manager destroying his own business. Meanwhile, Eddie feels a spark with Christopher's former teacher, but admits to Bobby he may not be ready to move on in his personal life just yet.
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S04E07 There Goes the Neighborhood
March 1 · 43min find the promo
Show synopsis
The 118 rush to save a man pinned under a Humvee, and a garage band that rocks out too hard. Enlisting Bobby and Athena's help, Michael installs a new "rear window," and turns into an amateur detective after noticing strange behavior at a nearby apartment. Meanwhile, Hen's mother unexpectedly arrives and announces she is moving to LA, and Buck's re-entry into the dating pool ends in disaster.
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S04E08 Breaking Point
March 8 · 43min find the promo
Show synopsis
The 118 are called to the tarmac when a flight attendant reaches her limit with her flight's passengers. Athena discovers that quarantine has pushed a couple to their breaking point. Meanwhile, Eddie worries Christopher will not accept him dating, Buck reconnects with an old flame and finds himself in the middle of Albert's new relationship and Maddie and Chimney make a big decision about their baby.
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S04E09 Blindsided
April 19 · 43min find the promo
Show synopsis
Athena and the 118 race to save lives after a drunk driver causes a deadly pile-up on the freeway. Meanwhile, Maddie goes into labor and Hen and Karen are devastated as they prepare their foster daughter, Nia, to be reunited with her birth mother.
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S04E10 Parenthood
April 26 · 43min find the promo
Show synopsis
The 118 responds to a series of calls dealing with parents and their children, including a disastrous birthday party thrown by a mommy blogger. Meanwhile, Athena and Michael talk to May about her past suicide attempt, Chimney and Maddie adjust to life with their newborn, and Hen and Karen are emotionally shattered as their foster daughter, Nia, is reunited with her birth mother.
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S04E11 First Responders
May 3 · 43min find the promo
Show synopsis
The members of the 118 rush to the site of a hit-and-run that leaves a familiar face in critical condition. Meanwhile, with Buck's help, Athena investigates the case of a missing woman last seen in a casino and Josh recalls an emergency in 2006 that led him to become a 9-1-1 operator.
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S04E12 Treasure Hunt
May 10 · 43min find the promo
Show synopsis
When a famous mystery writer dies, Athena, Bobby and the 118 respond to the chaos caused by a city-wide manhunt for buried treasure the author left behind.
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S04E13 Suspicion
May 17 · 43min find the promo
Show synopsis
The members of the 118 make calls to save a bridezilla at a disastrous wedding and to a mother trapped on her balcony. Meanwhile, Hen plays medical detective when her mother, Toni, falls ill. Also, Eddie and Christopher receive a visit from Carla, Athena uncovers a secret Bobby has been hiding that puts their marriage on the rocks and Maddie struggles with adjusting to motherhood.
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S04E14 Survivors
May 24 · 43min find the promo
Show synopsis
In the aftermath of the shooting, Athena and the 118 are on high alert when a sniper is targeting members of the LAFD. Meanwhile, Maddie makes a life decision. Season finale