In its first four seasons on FOX,9-1-1: Lone Starhas brought many high-octane rescues to the screen.

The 126 Firehouse has survivedeverything from tornadoes to snowstormsand saved the lives of countless individuals.

But nowit looks like the series itself might be the one in danger.

Rafael Silva and Ronen Rubinstein next to each other in front of blue and red siren lights

Image via Zanda Rice

The culprit is never seen onscreen.

He finds documents, videotapes, and a burner phone.

Gabriel warns that if anything happens to him, it will be because of this case.

Gabriel (Benito Martinez) with his arm around Andrea (Roxana Brusso), who’s shocked, in ‘9-1-1: Lone Star.'

Image via Fox

These are the best 9-1-1 Lone Star episodes.

It is possible that this might lead Carlos down a dark path.

Emotionally, he’ll likely be consumed again by grief and by wanting to get revenge for his father.

Gina Torres and Rob Lowe in 9-1-1: Lone Star

Deciding to focus on his father’s case willalso likely impact Carlos’ relationships, particularly with TK.

To leave his death un-examined and unsolved would be a disservice to the character and to the show itself.

Seasons 1-4 of9-1-1: Lone Starare available to stream on Hulu in the U.S.

9-1-1 Lone Star TV Series poster

A spin-off series of 9-1-1, 9-1-1: Lone Star is an action-drama series created for Fox. The series follows Rob Lowe as Owen Strand, a firefighter from New York City who, after having rebuilt a team in the aftermath of September 11th’s attacks, is brought in to form a new one in Austin, Texas.

Season 5 will premiere on Monday, September 23 at 8 p.m. on Fox.

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9-1-1: Lone Star