How the groundwork was laid for that jaw-dropping Shot in the Dark.

Warning: This article contains spoilers forSurvivor 45, episode 6.

The Shot in the Dark had never actually saved a player who would have otherwise been voted out.

Survivor 45

Kaleb Gebrewold on ‘Survivor 45’.Robert Voets/CBS

That gave Kaleb immunity from the vote, andJ Mayawas then unanimously ousted in a revote.

“That’s exactly it,” Probst says on the podcast.

“You imagine: What’s the best thing that could ever happen with this?

Survivor 45

Jeff Probst on ‘Survivor 45’.Robert Voets/CBS

That germ of an idea eventually morphed into what became the Shot in the Dark.

And then there were other creative elements that needed to be worked out.

“We landed on some really important things,” Probst says.

“It’s secret.

You don’t tell the tribe.

You do it when you go up to vote, and that creates this dilemma.

We talked about: How big is the Shot in the Dark die?

How much does it weigh?”

We could show you or we could keep the mystery.

And if so, I’m buying a lottery ticket.'”