Here's the vidcaps taken from the Chal Preview video clip featuring DreamTeamers, as mentioned above by Squid.

Vidcaps courtesy of SurvivorFever (ty Mayan Sun)
http://www.survivorfever.net/vc_s25_ep4_challenge.html

Transcript:

John Kirhoffer (Survivor Challenges Producer): Swing Break, you guys are going to be racing to gather pots full of rice. First person runs out, they get two pots, put them on their yoke. Carrying the yoke with baskets over your shoulder, stepping over these obstacles. Step over, step over, hang the yoke, take your pots out, set them in one of those pot basket holders. On your way back, you go underneath, crawling underneath. Drop your yoke and yoke holder, hang out with the next player. Next two players go out, get their two pots, go across, set 'em up and come back. Once all 10 pots are in their holding positions, the last player comes back, hangs up their yoke, then you all go out together, underneath the build and then one player will swing the wrecking ball. It's a very dangerous ball. If you're not paying attention you can take your teeth out.