9-1-1 Launches Season 10 With Volcanic Crisis in Los Angeles

ABC's first responder drama 9-1-1 returns for Season 10 on Thursday, October 15, 2026, with the 118 firefighters facing a volcanic emergency in Los Angeles as the series opens a new storyline involving Athena Grant's detective transition and the team's changing roles.

According to ABC's premiere synopsis, the opening episode titled "That Sinking Feeling" centers on a major disaster threatening the city. Disney's programming information states the episode will be available on Hulu the following day.

The premiere trailer shows Chimney, Hen, Buck, Eddie, Ravi and Harry responding as molten lava creates dangerous conditions for residents and emergency crews. Eddie is shown rescuing a dog, while Athena faces danger underground during another operation.

Maddie Han's character highlights the lack of preparation for a volcanic disaster in Los Angeles in the trailer.

"Unfortunately, LA has no protocol for a volcano!" Maddie said in the trailer.

Athena Grant's detective transition remains a major storyline after Season 9 ended with uncertainty following Detective Hooks' shooting during a human-trafficking investigation. Angela Bassett addressed the unresolved outcome during an appearance on Good Morning America.

"It remains to be seen," said Angela Bassett, actor.

Bassett also discussed Athena's condition after the unresolved Season 9 events.

"I wish I could say. But Athena is strong." said Angela Bassett, actor.

Showrunner Tim Minear discussed the next season's direction before the Season 9 finale with Decider, indicating that developments from the previous episodes would continue into Season 10.

"I'm excited for all the characters, actually. I can't really spoil where we're going in the last three episodes, but I'm also excited and scared about what's going to happen to Athena," said Tim Minear, showrunner.

Minear also described plans to continue a storyline that began near the end of the previous season and would extend into the new season.

"I'm going to start a story here at the end of this season that's going to carry over into next season. I'm pretty excited about it!" said Tim Minear, showrunner.

Season 10 also explores the aftermath of Bobby Nash's death. According to Disney's season preview, Chimney works to become captain while maintaining Bobby's legacy.

Buck begins a foster-parent role for Theo after Theo's biological parents died in a car crash. Eddie supports Buck as he navigates the responsibilities of raising a child and the foster-care system.

ABC renewed 9-1-1 and 9-1-1: Nashville on March 5, 2026. The network scheduled the Season 10 premiere of 9-1-1 for October 15 alongside other Thursday night dramas.