After a terrifying lightning strike, the Station 19 crew works overtime to extinguish the fire at Meredith Grey's home. Meanwhile, Maya is rushed to Grey Sloan Memorial Hospital due to a medical emergency.

The Station 19 crew trade in their turnouts for tuxes and gowns as they attend the Firefighters Ball, but when disaster strikes, they jump into action to save the day.

Andy becomes painfully suspicious of the circumstances surrounding her mother’s death and goes to her aunt looking for answers. Meanwhile, the members of the crew work to evacuate a doctor from Pac-North hospital and find themselves in a life-threatening situation; and Sullivan undergoes surgery for his chronic leg pain.

Andy and Sullivan find a way to stay connected; Ben confronts a tough loss, and Jack and Inara grow closer. Meanwhile, while off duty, the crew jumps into action to help a mother in distress, but their heroic efforts spark conflict with police officers who are less than eager to offer support.

It’s the most wonderful time of the year and the firefighters have their hands full responding to a number of crises throughout Seattle. Putting aside their differences and personal drama, they come together to try and achieve a Christmas miracle.

When a lightning storm crashes a helicopter, the team is drawn away from hosting a fire boot camp for young women, and Natasha calls on Jack to help Vic run the camp instead. As the storm brews outside, things get even more heated inside between Carina and Maya on the fall finale of Station 19.

Emotions boil over at the station as the team chafes against Theo’s leadership style. Carina enlists Ben and Maya to help her with a patient in an uncomfortable position. Natasha and Sullivan’s relationship hits a roadblock.

A shoddily assembled structure poses a dangerous challenge for our heroes leaving Ben with a difficult choice to make. Maya and Carina work to get their relationship back on track, while Natasha must decide what – or whom – she wants to prioritize.

It’s election day at Station 19, with all eyes on the mayoral race. Andy, Theo and Sullivan vie to be named captain, and Vic forges an unexpected bond after going rogue.

When a wildfire threatens Seattle, the crew must jump into action to save their city. Meanwhile, as the station undergoes changes, Andy contemplates the future.

Andy deals with the aftermath of a trauma.

Vic and Theo respond to a domestic disturbance between the parents of a trans teenager; Jack learns shocking new details about his childhood, and Ben and Travis help a clinic patient that’s long overdue for medical treatment.

Andy tracks down a witness to testify at her trial. Meanwhile, Carina and Maya deal with a stressful situation, and the crew responds to a car wreck.

The Station 19 crew offers aid to a man who sets himself on fire. Theo proves his devotion to Vic; Sullivan seeks advice from Dr. Webber; and Travis comes to a realization about his love life.

As Ben readies the new Physician Response Team truck for the field, his suspicions about Sullivan and the missing Fentanyl continue to grow. Meanwhile, Jack and Rigo try to look past their differences when they are forced to work together and fight a mysterious gas station fire; Dean and JJ try to work through their differing parenting styles; and Travis meets someone new.

While at a lunch seeking Pruitt’s blessing for their relationship, Andy and Sullivan jump into action when ICE attempts to raid the restaurant. Meanwhile, Travis gets roped into an awkward lunch with Chief Dixon, Emmett and Emmett’s girlfriend; and Ben invites Grey-Sloan Memorial surgeons Owen Hunt, Teddy Altman and Jackson Avery to get a sneak peek of the new PRT vehicle.

The Station 19 crew battles a storage facility fire with growing complications, and Dr. Jackson Avery pops over from Grey Sloan and ends up collaborating with old pal Ben Warren.

Andy, Sullivan, Dean and Ben are faced with a tough choice while trying to save a couple trapped in their car. Meanwhile, Dean second guesses his legal fight against the Seattle Police Department; Travis’ dad fears he will be outed when his “golfing friend” is exposed to COVID-19; and Carina’s immigration status is called into question.

Station 19 and Station 23 each attempt to celebrate Thanksgiving following the fallout from the neighborhood explosion. The firefighters come together to cook, toast to loved ones they have lost, and celebrate the families they have become.

A simulation fire training goes dangerously wrong. Maya tries to make amends, and Bailey encourages Carina to listen. Meanwhile, Jack’s sister shows up at the station with a friend, an injury and an attitude.

A call from a social media star’s livestream sends the team on an unusual rescue. Travis’ mayoral campaign takes off, much to his chagrin. Back at the station, Ben treats a patient with a surprising diagnosis.

The members of Station 19 pack their gear and head to Los Angeles, California, to help battle a deadly wildfire raging out of control. While the team works to evacuate residents, they meet Terry, and Ben makes a split-second decision that changes both of their lives.

Vic’s love life is complicated again as she learns of a shocking secret. Meanwhile, Andy grows frustrated at Sullivan for undermining her authority, and Maya struggles to keep her jealousy at bay when one of Carina’s old flames comes to visit.

When Theo and Vic hit a relationship milestone, Vic is forced to reckon with her feelings about commitment. Andy takes refuge at Dean’s home and helps care for Pruitt, while Dean considers a new potential career opportunity. Meanwhile, an explosion rips apart a neighborhood and changes the lives of our firefighters forever. The crossover continues on Grey's Anatomy S18E05: Bottle Up and Explode! (II)

The new Seattle fire chief is introduced to Station 19 and leaves the crew skeptical after his visit. Later, the firefighters are called to a department store fire caused by exploding fireworks, which triggers painful memories from Ben’s past and inspires him to pursue a new endeavor. Maya advocates for herself and her career, while Jack becomes more intertwined with an acquaintance; and Andy and Ryan have a heart-to-heart.