Meredith and Maria chip their way up the ice wall, joined late in the game by Don and MJ. MJ actually passes Meredith going up the wall, which rules. Not because I don't like Meredith and Maria, because I do. But still, MJ is somebody's grandma. Go, grandma, go! Don and Maria follow. At the top, Don says, with a perfect voice crack, "I'd rather put that ice in a martini." I don't like martinis, but still? Funny. They head for the clue box. These teams, both of whom suspect they might be fighting it out for last place, head back to their SUVs and hop in. In the car, Maria is going on about how great it was, and Meredith looks a little less thrilled. I think she's okay with being done with the ice wall.

And here are Lena and Kristy and Kris and Jon, pulling up to the pit stop. Jon says, "It's go time," and Kris smiles and repeats it, and you can tell she loves go time. She's kind of twittery, but she is so excited to be doing this that I can't not love her. Unfortunately, both teams get running in the wrong direction out of the SUVs, but because Kris and Jon figure it out before Lena and Kristy, they get to be team number two. Phil asks them if they got lost on the way to the pit stop, and Kris points out that they were following the girls, and the girls wandered a bit. Speaking of whom, the sisters and Kris and Jon pass each other coming and going near the mat, and the teams exchange a low-five. Nice. Welcome, disoriented sisters, you are team number three. They're shocked, obviously expecting something more toward the middle.

Nuance car. Freddy says that he's psyched, and sure they're not last, and Kendra really wants him to stop jinxing them. Heh. "It's not overconfidence, but we're doing fine," he says. Somebody didn't give them the memo that all disagreements must end in insults and hollering.

Hornio. They have stopped to put gas in the car, and you are seriously not going to believe what happens next. "Diesel, or no?" Rebecca asks. "I don't think so," says El Hornio. So they don't check, and she fills it up with regular. That's in spite of the fact that inside the gas cap, in a red box, it says, "DIESEL." When El Hornio goes inside to pay, he soon returns with the attendant, who quickly ascertains that they have filled their diesel tank with regular. "Is that bad?" Rebecca wonders. "It's pretty bad," the guy says. Heh. "I don't know what this means," Rebecca frets. For some reason, she repeatedly says it's her fault, even though we saw exactly how it progressed. She should have seen it on the gas cap, but he also shouldn't have said he didn't think it took diesel. They're both idiots for letting this happen again. He tells her to go away so that he can talk to the guy. Jerk. The gas station guy says that they'll have to empty the tank, and that will take a little time. Oh, El Hornio.