"It takes a team of people to help answer the famous question, \"911, what's your emergency?\" Detective Athena Grant works as a member of the police force, handling cases that require her sharp mind and expertise, while also trying to juggle her own family drama. Bobby Nash and his team of firefighters help execute the daring rescues that often come along with these life-threatening situations. Meanwhile, Abby Clark spends her days taking and fielding emergency calls at the 911 call center, but constantly desires to know what happens after she sends help."

"A night at an amusement park takes a deadly turn when a roller coaster malfunction leaves lives hanging in the balance. Abby reaches out to Buck; Athena and Hen respond to an unusual home invasion."

"Bobby and his team respond to an emergency at a children's birthday party that leaves lives hanging in the balance. The crew jumps into action after one of their own is involved in a devastating accident. Athena tries to cope with a tragedy that hits way too close to home and Abby is confronted with a life-changing decision for her mother and makes a connection with Buck."

"In the aftermath of a deadly plane crash, Bobby and team race to help the survivors, while Athena deals with panic and chaos at the airport. Bobby confronts his past demons; Athena is out for revenge against a group of teen bullies; and Abby delivers an important message from a 9-1-1 caller."

"The crew races to an emergency when disaster strikes at an Indian wedding. Abby enlists the help of Buck to try and find her mother and, for the first time, meets Athena face-to-face. Meanwhile, Bobby has a difficult time confronting his past and Hen struggles to make the right decision."

"On Valentine's Day, a surprise marriage proposal goes awry with dangerous consequences. Athena attempts to help a desperate woman and unintentionally joins the Lonely Hearts Club. Bobby and Chimney pull holiday duty and learn about the \"Casanova Fracture\" and Abby and Buck go on their first official date."

"A full moon keeps the crew busy with some of the craziest calls yet, as Athena investigates a potential home invasion and \"faces off\" against a rabid criminal. Meanwhile, Abby helps investigate the murder of a caller, Bobby and Buck have their hands full at a yoga studio for pregnant women and Hen's past may become her future."

"What goes around comes around for an unremorseful widower, an arrogant fitness club owner and an unsuspecting thief. Meanwhile, Bobby gets a surprising phone call from his doctor after donating at Chimney's blood drive, and Athena confronts Michael after having a heart-to-heart with their kids."

"The first responders race to help a homeless man crushed in a garbage truck, a mother and son in a crashed elevator and extreme hoarders entombed in their house. Meanwhile, Athena jumps into to the dating pool, as Buck and Abby's relationship is tested by her ailing mother."

"The first responders take calls to help an unusual domestic disturbance, a \"death\" at a psychic's and a horrific motorcycle crash. Meanwhile, Bobby dips his toe into the dating pool, Abby takes a walk down memory lane, Buck is confronted by his past actions and Athena tries to start her new life."

"On one of the hottest days of the year, the first responders feel the pressure as harrowing incidents keep happening around the city, including a road rage accident involving a van full of tourists, an emergency at an auto-repair shop and a grenade. Meanwhile, Buck gets a surprise visit from his sister, and a handsome new hire Eddie jeopardizes Buck's chances of being chosen for a fireman calendar."

"When a massive earthquake rocks Los Angeles, the first responders rush to rescue victims from a crumbling high-rise hotel both under the rubble and high above the ground. Athena must deal with wreckage from a collapsed freeway overpass and Maddie is thrown into the fire as she faces her first crisis as a 911 dispatcher."

"The first responders continue to deal with the fallout of a massive earthquake and its deadly aftershocks. Athena tries to keep the peace as Bobby and team continue to rescue victims from a collapsing high-rise hotel, both under the rubble and high above the ground. Maddie 's first day on the job involves helping a pregnant couple deliver their baby safely."

"Athena contemplates accepting a promotion that will take her out of the field."

"Maddie goes for a ride-along with Athena in the hopes of being on the other end of a 9-1-1 call; Hen attempts to learn how to prevent her family from falling apart at the seams; disaster strikes at a military funeral and movie theater."

"When the first responders race to the rescue of a crashed news copter, they unwittingly become the subject of an eager reporter's first on-air assignment. Meanwhile, Bobby tries to deal with his daughter's death, as Athena prepares for May's homecoming dance. Then, Maddie struggles to let go of her fear of the past. Also, the team responds to emergencies at an eating contest, a bodybuilding competition and a toddler pageant."

"Halloween finds the first responders racing to the rescue at a cemetery, a haunted hayride and a spooky Hollywood parade; Meanwhile Maddie thinks she has received a \"ghost\" call from a missing hiker; Hen finds herself facing with a life or death situation with the father who abandoned her; Eddie reconnects with his estranged wife."

"Buck jumps back into the dating scene but fears he will return to his old ways; a woman goes to great extremes on a freeway overpass to get the attention of her husband; a couple have a car accident on their wedding day."

"Hen relives her evolution into the firefighter she is today as she recalls the first times she met Chimney and Athena."

"The holidays are naughty and nice for the first responders, who must deal with a stampede at a toy store, a mistletoe stunt gone awry and neighbors competing in a Christmas-light showdown. Meanwhile, Bobby contemplates his future with Athena, Chimney and Buck attempt to lift Maddie's spirits and Eddie must decide if he wants to give his son what he really wants for Christmas - a visit with his mom."

"Bobby meets Athena's parents for the first time and Maddie attempts to end her marriage for good, causing Doug to insinuate himself even deeper into Chimney's life. Meanwhile, a tanker carrying a tiger shark crashes on the freeway and a gas leak in a plastic surgeon's office happens mid-surgery."

"Look back at how Chimney joined Station 118 and became the firefighter and paramedic he is today."

"The First Responders rally together to search for a missing Maddie."

"When Metro LA's 9-1-1 system is hit with a massive system-wide power outage, the call center must go old school in responding to emergencies. The first responders must deal with explosions in multiple homes and a difficult child birth. Meanwhile, Michael confronts Bobby about parenting his kids."

"A going-away party for a bank manager turns into an emergency, and then a mystery, as the first responders are accused of pulling off a daring heist."

"Bobby Nash decides to move to Los Angeles in the hopes of restarting his life after a devastating tragedy that struck his family back in Minnesota, but in Los Angeles, he first meets Athena Grant and works his way to captain of the 118."

"The first responders deal with a calamity at a chocolate factory; a mail bomb explosion; Eddie receives some surprising news from Shannon; Maddie contemplates her future in the call center."

"The 118 deals with a situation where a stunt driver is placed in a precarious position, two mail bombs are detonated and a teenaged social influencer loses their mind; Eddie's family decides to visit; Buck confronts a deadly series of events."

"Athena enlists the 118's help when a teenager speeds out of control on the freeway; A routine traffic stop uncovers a shocking kidnapping; Buck struggles with his recovery."

"A massive tsunami hits the Santa Monica Pier, placing Buck and Christopher's lives in danger."

"Athena, Maddie, Bobby, and the 118 race to save lives after a massive tsunami hits the Santa Monica Pier; Buck fears the worst when Christopher goes missing."

"The first responders race to save workers in a high-rise during a fire drill and a mother and her sons involved in a perilous car accident; Maddie decides to take action against a possible wife abuser."

"Athena takes action after her family experiences a traumatic traffic stop; Buck's suit against the city goes to arbitration; Eddie turns to Lena in his struggles with his anger issues."

"Athena and the 118 respond to bizarre emergency calls on Halloween; Maddie remains convinced that she is doing the right thing in taking a 911 call into her own hands."

"When a murder weapon from a case close to Athena in the early '90s resurfaces, flashbacks to 1989 show how Athena joined the LAPD and became the police officer she is today."

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"The 118 responds to a skydiving trip gone wrong, a bank rep injured in a home repossession and a lovestruck assistant whose lunch run ends in disaster; Athena and the family come to terms with Michael's difficult health decision."

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"The 118 responds to accidents at a bowling alley and a home renovation; Athena pursues a car thief; Chimney and Maddie rush into action when their romantic dinner date takes a wild-turn."

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"Eddie's journey to rescue a boy from a well turns into a mission to save himself from his past."

"The 118 fights an apartment building blaze; Athena's response to an accident call leads to a more sinister crime; Hen performs a risky medical procedure during a televised cooking show; Buck is inspired to reunite with his lost love."

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"The 118 races to save lives when the Hollywood Reservoir dam breaks and adjust to life as first responders during the pandemic. Bobby worries if Athena is ready for field duty since recovering from her physical and psychological injuries."

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"The 118 race to save the lives of workers trapped in a five-alarm factory fire. 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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"Athena and the 118 race to save lives after a drunk driver causes a deadly pile-up on the freeway. Maddie goes into labor. Hen and Karen are devastated as they prepare for Nia to be reunited with her birth mother."

"The 118 responds to a series of calls dealing with parents and their children. Chimney and Maddie adjust to life with their newborn. Hen and Karen are emotionally shattered as Nia is reunited with her birth mother."

"The 118 rush to the site of a hit-and-run that leaves a familiar face in critical condition. Athena investigates the case of a missing woman last seen in a casino. Josh recalls an emergency that led him to become a 9-1-1 operator."

"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."

"The members of the 118 make calls to save a bridezilla at a disastrous wedding and a mother trapped on her balcony. Hen plays medical detective when her mother falls ill. Athena uncovers a secret Bobby has been hiding."

"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."

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"The 118 springs into action when a city-wide blackout and a record heatwave causes mayhem in Los Angeles. Chimney confides in Hen about Maddie's condition and Athena's worst nightmare comes true."

"As the citywide blackout continues to cause mayhem in Los Angeles, Athena races to save her family from a tragedy. Meanwhile, Eddie must make a difficult choice about his future and Maddie makes a life-changing decision."

"The 118 arrives on the scene after a truck crashes into a high school homecoming parade. Athena and Michael try to help Harry in the aftermath of his kidnapping. Bobby gives Chimney advice regarding Maddie."

"The 118 face an awkward rescue call when a man over-exerts himself exercising, and race to an explosion at a retirement community. Hen and Eddie, as well as Buck and Ravi, have rocky starts to their new partnerships."

"The 118 race to rescue a man who claims he was carjacked, shot and buried alive, and then arrive at a home where the owner thinks her roommate is a ghost. Hen receives a visit from the past."

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"Bobby and the 118 race to the rescue when an abandoned oil well erupts and causes a massive sinkhole in downtown LA. Athena investigates a 30-year-old cold case involving a casino robbery. [...]"

"The members of the 118 are called to a series of emergencies around Christmas Eve. Then, Eddie struggles with an emotional Christopher."

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"Athena investigates a robbery at a gas station that takes an unexpected turn when the would-be victim turns the tables on her assailant. The 126 race to rescue a novice diver in a shark cage. Eddie reaches his breaking point."

"The members of the 118 race into action when a women falls over her penthouse balcony. Meanwhile, Athena investigates when a bike rider is impaled on a stop sign, Eddie begins his therapy for his PTSD and survivor's guilt and Maddie "

"The 118 races to an influencer in a sauna and an emergency at a reality show wedding. Maddie worries she has missed many Jee-Yun's firsts, May questions Athena's career and Hen and Karen try to recapture the fun in their relationship"

"The 9-1-1 Call Center goes up in flames: Bobby risks his life to save May and Claudette, Buck and Eddie work together to help an injured electrician and Chimney and his brother team up as firefighters for the first time."

"After a mysterious death, Hen and Chimney put their lives in danger when they suspect that someone is playing God to make themselves look like a hero. Eddie visits Texas, where he attempts to reconcile with his father."

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"The 118 race to rescue two roommates desperately trying to find a needle in a haystack at a landfill, and help a woman whose nightmare dream becomes a painful reality. Athena and Maddie team-up to find a missing boy in a crowded m..."

"A wedding proposal intersects with a bank robbery. A princess bride is stuck on her way to the altar. Athena talks a victim through her grief. Maddie takes matters into her own hands as Buck finds a surprise visitor on his doorstep."

"A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118."

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"Athena is tasked with safely delivering a prisoner to testify on a high-profile case. Meanwhile, a light plane is hit by a swarm of bees and sent careening into a passenger plane."

"Athena's only chance of surviving and saving everyone on the flight is to attempt to land the plane before it crashes and call on the 118 for help."