How shows dealt with sad losses.

O'Donnell stars on the latest '9-1-1' spinoff '9-1-1: Nashville.'

'9-1-1' previously crossed over with '9-1-1: Lone Star' and 'Doctor Odyssey.'

Plus, everything else you need to know about the upcoming chapter.

'We're going to get a bunch of crazy emergencies where people end up in places where they shouldn't be,' showrunner Rashad Raisani has said.

The third series in the '9-1-1' franchise premieres this fall, and from the looks of this new preview, it's going to be a scorcher.

Newest series in the franchise premieres on October 9 on ABC.

The '9-1-1' spinoff will premiere on ABC on October 9.

Everything we know from a return date to who's not returning and new leadership.