Each week host Jeff Probst will answer a few questions about the latest episode of Survivor: CambodiaSecond Chance.

Lets start with the reward challenge.

What I found fascinating about this one is it really doesnt appear too difficult.

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Credit: Monty Brinton/CBS

Just run out in the water, grab some sand bags and run back.

Whats the big deal?

But that certainly was not the case, was it?

When our Dream Team tested it, it thoroughly exhausted them.

And our Dream Team is composed of 20-somethings who are typically pretty fit.

There was concern that three legs might be too tough for some of the contestants to complete.

So we committed to three legs and it worked out really well.

There was no hyperbole around that challenge they werespent.

That was a bona fide ass-kicker.

I was particularly pleased that two of three [Savage and Deitz] were over 50 years old.

So many questions about this immunity challenge.

Okay, heres what Id like to know: 1.)

Who got the worst of it with all those collisions?

And, 4.)

Feel free to answer on a point-by-point basis.

Medical checks everybody after a challenge just to double-check theyre okay.

But nobody in particular was in truly bad shape.

I think Varner had the most lasting effect with the toe shot.

I was definitely on edge during the rehearsals and the actual running of the challenge.

There has never been a challenge in which we were 100 percent certain that it was perfect.

We are always experimenting and testing trying to find the perfect balance.

Id be inclined to do this challenge again and maybe ask the challenge guys to design something less square!

Never seen a tribe so depleted.

In fact, I didnt realize how tired they were until I started questioning them about giving up.

But I believed them when they said they were simply out of energy.

I could see it and I could feel it.

They simply had nothing.

All I was doing was running around yelling and I had nothing left.

I drank three bottles of water, got on my boat and fell asleep for a twenty minute nap.

But this is why so many people want this experience.

Its the real deal.

Ilovethe fight in both Woo and Varner to stay alive at Tribal Council.

Talk about being there and watching these two go at it.

Woo really surprised and impressed me here.

I wasnt sure he had that in him.

That was the case in this episode.

Woo is really waking up and starting to PLAYSurvivor.

PlayingSurvivoris different from simply being a contestant and a loyal vote.

I loved seeing him go back for one more shot before he went to vote.

THAT IS HOW YOU DO IT.

Future players are you watching?

Thats what Woo did.

He didnt just check in he made a big time plea.

Varner on the other hand is a veteran at this.

Hes one of the best at this game.

That is a great approach to this game if you want to win.

He just didnt have theSurvivorgods on his side this time.

These first four episodes have been insanely good.

What happens when this train keeps rolling next week?

Next week has a lot going on.

She will have a lot of people shaking their heads in disbelief.

And for more Survivor scoop, follow Dalton on Twitter@DaltonRoss.