The Moustaches arrive at the first checkpoint, which informs them that the next checkpoint will be at a resupply area at the top of a ridge where boxes were airdropped by helicopter. Teams have to solve a riddle and use the answer to unlock their resupply box -- which has a word lock on it -- and get the next set of instructions. The riddle is: "Sometimes you pass by them and sometimes you go inside them. However, lately you have been spending a lot of time between them. What are they?" The Moustaches agree it must be "canyons," but when they arrive at the lock, it only allows for five-letter words. Gay Angst catches up while Moustaches have trouble figuring out the riddle. AJ figures it must be a plural answer so he has his team start with an "S" at the end and try to figure out a four-letter word. All teams except for S.W.A.T. have arrived at the word lock and are working to figure it out.
We return with a slight replay of the word lock situation and AJ talking about his plural idea. The Moustaches realize they must be on the wrong track and start surveying the area around them. They start thinking of words related to rivers and quickly come up with "banks," which unlocks their lock. The next checkpoint is on a river bank. Teams will get back in their rafts and paddle down river until they reach "the soup," a muddy water area they'll also have to paddle through. Kari figures out the riddle next as Moustaches take off toward their raft. AJ gives Kari sort of a backhanded compliment in TH and says he's proud of Kari for doing something she'd be the first to admit she's not really good at doing -- being smart, I guess. The S.W.A.T. are just now arriving at the word lock and are even further behind because Kari decides to give Akbar's Players the answer to the riddle, as per their alliance. The Moustaches do the same to help out Really Limited. Since this effectively nullifies the alliances and any competitive advantage they would've created, we're treated to a TH with AJ calling The Moustaches out for pretending to like Really Limited when it's obvious they just want them to stick around because they can easily beat them. One-way cattiness is not nearly as entertaining as competition. The Poor S.W.A.T. figure out the riddle all on their own and make up some time.