9-1-1 is a rare kind of procedural, providing stories built around first responders from emergency call center operators to firefighters to police officers who respond to the calls, and fans almost lost the series for good. 9-1-1 debuted in 2018 on FOX, and it was not long before it gained a spinoff in 9-1-1: Lone Star. Six seasons into the flagship series, however, Fox opted to cancel the show and shop it to another network, but keep the spinoff series in their lineup.