The first responders of 9-1-1: Lone Star face mortality every episode — but now the Fox drama itself is grappling with its potential end.

Following the news that actress Sierra McClain — who starred on the show as 911 dispatcher Grace — will not return as a series regular for season 5, Deadline Hollywood reported that Lone Star is on the chopping block as Fox executives decide what will be canceled and renewed for 2025 and beyond.

Entertainment Weekly can confirm that no decision on 9-1-1: Lone Star's renewal has been made, but in response to recent headlines, Rafael Silva and Ronen Rubinstein — who star as central couple Carlos and TK — posted messages to the fans on their Instagram Stories on Monday.

"Wherever the ship sails, [I'm] grateful for the family I've created on this show," Silva wrote.

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"Nowhere in that article stated a certain fate for our show," Rubinstein posted, along with a screengrab of a headline questioning Lone Star's future. "But one thing I do know for certain is we will continue pouring our blood, sweat and tears into these last few episodes and deliver to you our most special season yet. I better see all of you in September."

Last year, Fox executives canceled the original 9-1-1 series only for it to be picked up by ABC (a byproduct of Disney's 2019 acquisition of 20th Century Fox, the studio behind the parent series and spinoff).

"I feel like we have a great relationship with Disney," the CEO of Fox Entertainment, Rob Wade, said Monday prior to a panel at the Banff World Media Festival, as reported by Variety. "Obviously, we've seen 9-1-1 move to ABC and we're really proud of that show and that it's doing well. If we were the studio for that show, and ABC had that show, I don't think it would make economic sense for them either. I think it's about how to make the economics of a show like that work. You have to both studio and network and distributor of it. I kind of understand that."

He continued: "So when you’re looking at a show that is doing great in the ratings, but it's too expensive, you have to think well, is there opportunity to replace it with something with a with a more modern and dynamic business model that we could replace it with. In regards to 9-1-1: Lone Star, we're seeing where that goes. Again, it's a conversation between network and studio. Until we get to a point where we really know what's happening with that show, we're really excited about it in the fall. It's great creative."