ENTERTAINMENT WEEKLY: Okay, we need to talk about this Fire Token challenge at Edge of Extinction.

What can you tell us about this brutal task and medical being called in to check on Ethan?

JEFF PROBST: The effort task epitomizes what we hoped to accomplish with the Edge of Extinction this season.

Survivor

Robert Voets/CBS Entertainment

So, we created something called effort tasks.

This effort task was Herculean in terms of the amount of effort it took to accomplish.

One single trip to the top of the Edge will wind the most fitSurvivorplayer.

Then you have to walk back down.

Then you have to do it again and again and again.

Its one of the most dramatic sequences weve ever done on the show.

I was blown away by the effort of all four players.

The medical moment with Ethan was unexpected and as so often happens onSurvivorturned into a truly inspirational moment.

Ethan came back to play again because he wanted to show you might recover and thrive even after cancer.

Ethan has so much in his emotional tank that it allowed him to finish something that was physically punishing.

We knew we were in for a shoot that would span several hours and long distances.

Every single moment was wonderfully produced.

It looks obvious now that its done, but it was a very complicated structure of scenes.

Then we add the music.

David Vanacore, our composer put beautiful music to the entire sequence.

He found a beautiful singer to add a powerful angel voice that represented hope.

We laid that over the top of the score.

Im clearly very proud of theSurvivorteam for pulling off something that was extremely complex.

Seeing this in real time, just how big was that comeback?

That comeback was huge.

Its hard to really explain how long it took Adam to get that final key.

I had already started thinking about the questions I was going to ask Sele after another loss.

But just when you think its over… theSurvivormagic starts to happen.

Adam does not quit.

He was relentless climbing back to the top, walking out onto the beam and trying one more time.

And they needed it.

Another loss would have been brutal.

The obvious takeaway from that challenge is the same thing we say nearly every week.

It aint over until its over.

You must keep fighting.Survivoris not a science.

You never know how its going to end until it ends, so until it ends, keep pushing.

It was too easy.

And yet he gave his Fire Token to Nick, whom he was trying to vote-off.

What did you make of his ouster and his bequeathing?

Tyson is a massive threat.

Hes very smart, very charming and very athletically gifted.

You could argue he should have been voted out even earlier.

The most potent line of the episode is It was too easy.

Its so easy in hindsight.

It was a pretty funny moment.

Looks like its buff-dropping time!

What can you say about next weeks episode?

you’re able to alsohear from Ethan Zohn about both his brutal blindsideas well ashis big medical scare.

And for more behind the scenesSurvivorscoop, photos, and videos, follow Dalton on bothTwitterandInstagram.