Joe is shown to be struggling in a sneak peek of the next episode of CBS's Survivor: Worlds Apart.

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With Immunity on the line, the 10 remaining contestants on Survivor are shown competing in a challenge that involves holding a block about their heads and keeping it steady below a post. This is another endurance challenge though this one is a bit less physical than the one featured in the merge episode.

CBS has released a sneak peek at the Immunity Challenge through the Survivor YouTube channel.

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Right out of the gate, Joe seems to have difficulty adjusting properly.

"This is all about endurance," host Jeff Probst tells the castaways in the sneak peek video. It's gonna hurt and it's gonna hurt fast."

He soon observes that Joe is struggling early and calls him out in front of everyone else. There is a particular pressure on Joe considering he's been the primary target since the merge and has stayed in the game through winning Immunity every week. With Joe already struggling so early in the challenge, he may wind up being in trouble of going home at the end of the episode.

As far as who could potentially win the challenge, Carolyn proved herself to be in it to win it in the previous endurance challenge, so she has a good shot. This challenge was last seen in Survivor: Cagayan where Spencer wound up prevailing.

Survivor: Worlds Apart airs Wednesdays at 8 p.m. ET/PT on CBS/

Watch the sneak peek of the Immunity Challenge here:

Tags: survivor Reality TV CBS