But that doesn’t mean we’ve seen the last of Stark on the Fox drama.
“Buck is in a realm between life and death,” Stark teases.
With so much happening, we asked Reidel to break down the rest of the episode’s major moments.

Oliver Stark on ‘9-1-1’.FOX
This was the only move left.
I think it was May’s idea, to go in undercover.
Now we just have to see what comes of it."

Oliver Stark on ‘9-1-1’.FOX
So what’s the escalation to a visit from the Buckley family?
“We just loved the idea of seeing those families interact and meet for the first time.
Not immediately, but soon,” Reidel teases.
“And the question becomes, ‘How do you navigate this?’
Because on one hand, they are rightfully so incredibly angry with Nathaniel when they find out.
But at the end of the day, he is Denny’s dad.
And it’s a very complicated, as friends and families are a very complicated minefield to navigate.
What else can we expect?
“A lot,” Reidel says when asked what’s to come after next week’s Buck episode.
And then we have some big finale craziness coming.”
9-1-1airs Mondays at 8 p.m. ET/PT on Fox.