Seismic Shifts

Seismic Shifts is the eighteenth and final episode of the eighth season of 9-1-1, and the one hundred and twenty-forth episode overall. It aired on May 15, 2025.

Synopsis[]

The 118, still reeling from their recent loss, is dispatched to a mass casualty event after a high-rise apartment building collapses; Athena and Chimney have to work together to save a familiar face.^[2]

Cast[]

Starring[]

Angela Bassett as Athena Grant
Peter Krause as Bobby Nash (credit only)
Jennifer Love Hewitt as Maddie Han
Oliver Stark as Evan Buckley
Aisha Hinds as Henrietta Wilson
Kenneth Choi as Howard Han
Ryan Guzman as Edmundo Diaz
Gavin McHugh as Christopher Diaz

Guest Starring[]

Corinne Massiah as May Grant
Tracie Thoms as Karen Wilson
Debra Christofferson as Sue Blevins
Anirudh Pisharody as Ravi Panikkar
Brian Thompson as Vincent Gerrard
Elijah M. Cooper as Harry Grant
Constance Marie as Jessa's Mother
Terri Hoyos as Tia Pepa
Sam Roach as Graeme Quay
Adam Hagenbuch as Donnie
Arianna Rivas as Jessa
Christopher Curry as Flint West
Jill Remez as Judge

Co-Starring[]

Chiquita Fuller as Linda Bates
Destiny Hernandez as Crystal
Sally Brooks as Judy
Ryan McCann as Joel
Declan Pratt as Denny Wilson
Askyler Bell as Mara Wilson
Bailey Leung as Jee-Yun Buckley Han

Trivia[]

The production code number for this episode is #8LAY18.
This is the last episode to credit Peter Krause (Bobby Nash) as a series regular. Incidentally, this is also the first episode of the series Bobby did not appear in.

Multimedia[]

Gallery[]

Episode Stills[]

Screencaps[]

Videos[]

9-1-1 8x18 Promo "Seismic Shifts" (HD) Season Finale

References[]

9-1-1 Episode Guide
Season 1	"Pilot" • "Let Go" • "Next of Kin" • "Worst Day Ever" • "Point of Origin" • "Heartbreaker" • "Full Moon (Creepy AF)" • "Karma's a Bitch" • "Trapped" • "A Whole New You"
Season 2	"Under Pressure" • "7.1" • "Help Is Not Coming" • "Stuck" • "Awful People" • "Dosed" • "Haunted" • "Buck, Actually" • "Hen Begins" • "Merry Ex-Mas" • "New Beginnings" • "Chimney Begins" • "Fight or Flight" • "Broken" • "Ocean's 9-1-1" • "Bobby Begins Again" • "Careful What You Wish For" • "This Life We Choose"
Season 3	"Kids Today" • "Sink or Swim" • "The Searchers" • "Triggers" • "Rage" • "Monsters" • "Athena Begins" • "Malfunction" • "Fallout" • "Christmas Spirit" • "Seize the Day" • "Fools" • "Pinned" • "The Taking of Dispatch 9-1-1" • "Eddie Begins" • "The One That Got Away" • "Powerless" • "What's Next?"
Season 4	"The New Abnormal" • "Alone Together" • "Future Tense" • "9-1-1, What's Your Grievance?" • "Buck Begins" • "Jinx" • "There Goes the Neighborhood" • "Breaking Point" • "Blindsided" • "Parenthood" • "First Responders" • "Treasure Hunt" • "Suspicion" • "Survivors"
Season 5	"Panic" • "Desperate Times" • "Desperate Measures" • "Home and Away" • "Peer Pressure" • "Brawl in Cell Block 9-1-1" • "Ghost Stories" • "Defend in Place" • "Past is Prologue" • "Wrapped in Red" • "Outside Looking In" • "Boston" • "Fear-O-Phobia" • "Dumb Luck" • "FOMO" • "May Day" • "Hero Complex" • "Starting Over"
Season 6	"Let the Games Begin" • "Crash & Learn" • "The Devil You Know" • "Animal Instincts" • "Home Invasion" • "Tomorrow" • "Cursed" • "What's Your Fantasy?" • "Red Flag" • "In a Flash" • "In Another Life" • "Recovery" • "Mixed Feelings" • "Performance Anxiety" • "Death and Taxes" • "Lost & Found" • "Love Is in the Air" • "Pay It Forward"
Season 7	"Abandon ‘Ships" • "Rock the Boat" • "Capsized" • "Buck, Bothered and Bewildered" • "You Don't Know Me" • "There Goes the Groom" • "Ghost of a Second Chance" • "Step Nine" • "Ashes, Ashes" • "All Fall Down"
Season 8	"Buzzkill" • "When the Boeing Gets Tough..." • "Final Approach" • "No Place Like Home" • "Masks" • "Confessions" • "Hotshots" • "Wannabes" • "Sob Stories" • "Voices" • "Holy Mother of God" • "Disconnected" • "Invisible" • "Sick Day" • "Lab Rats" • "The Last Alarm" • "Don't Drink The Water" • "Seismic Shifts"

9-1-1: Lone Star Episode Guide
Season 1	"Pilot" • "Yee-Haw" • "Texas Proud" • "Act of God" • "Studs" • "Friends Like These" • "Bum Steer" • "Monster Inside" • "Awakening" • "Austin, We Have a Problem"
Season 2	"Back in the Saddle" • "2100°" • "Hold the Line" • "Friends With Benefits" • "Difficult Conversations" • "Everyone and Their Brother" • "Displaced" • "Bad Call" • "Saving Grace" • "A Little Help From My Friends" • "Slow Burn" • "The Big Heat" • "One Day" • "Dust to Dust"
Season 3	"The Big Chill" • "Thin Ice" • "Shock and Thaw" • Push" • "Child Care" • "The ATX-Files" • "Red vs. Blue" • "In the Unlikely Event of an Emergency" • "The Bird" • "Parental Guidance" • "Prince Albert in a Can" • "Negative Space" • "Riddle of the Sphynx" • "Impulse Control" • "Down To Clown" • "Shift-Less" • "Spring Cleaning" • "A Bright and Cloudless Morning"
Season 4	"The New Hotness" • "The New Hot Mess" • "Cry Wolf" • "Abandoned" • "Human Resources" • "This Is Not A Drill" • "Tommy Dearest" • "Control Freaks" • "Road Kill" • "Sellouts" • "Double Trouble" • "Swipe Left" • "Open" • "Tongues Out" • "Donors" • "A House Divided" • "Best Of Men" • "In Sickness and In Health"
Season 5	"Both Sides, Now" • "Trainwrecks" • "CI2" • "My Way" • "Thunderstruck" • "Naked Truth" • "Kiddos"• "The Quiet Ones" • "Fall From Grace" • "All Who Wander" • "Impact" • "Homecoming"

9-1-1: Nashville Episode Guide
Season 1	"Pilot" • "TBA"

[1] ttps://programminginsider.com/thursday-ratings-georgie-mandys-first-marriage-on-cbs-rises-in-season-finale

[2] ABC Press

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