Phil reminds us that Bill & Cathi came in last at the previous leg, hence their Speed Bump before they move on. For this they have to... untangle a rope. Remember the Gordian Knot from a few seasons ago? That was cool. This is just a tangled hairball that Phil holds up like he just wrestled it out of the ocean. They need to free up enough rope to link it to a tree a hundred yards away or so before they can get back to the race. They find it and get right to work on what Bill refers to as a string of Christmas lights out of Christmas Vacation. What is with the dated references tonight? It's like a season of Rip van Winkles.

Ernie & Cindy are approaching on what appears to be a pretty wild road, full of wandering chickens and large rocks. The road is so bad, in fact, that Marcus compares it to the ones in Detroit. Bill and Cathi are making good progress with their rope when Ernie & Cindy arrive and are "shocked" to see the grandparents already there. Cindy agrees to take on the spelunking task, and as she heads for the cave all geared up, Cathi vows, "We're going to be rocking and rolling right behind them." Liz & Marie arrive in third place, and are loudly unsurprised to be spelunking. As Amani and Marcus arrive, he pries himself out of the back seat of the cab, grunting, "I know how you feel, Big Easy." He's not quite that big, but remember, that was three hours in the back of that cab. Bill and Cathi finish their Speed Bump, so Amani and Marcus are technically in fourth place when they read their clue. Marcus agrees to spelunk, although he has no idea what the word means. "Good lord, I hope I don't have to go up high," he says. Well not exactly. Cindy gets started, apparently having done this lots of times, and she happily starts rappelling down. Marie is not far behind, saying she's going to pee her pants, but she's happy do be doing something she's never done before. I'm sure Cindy, right below her, will appreciate any efforts Marie puts into her continued continence. Marcus tells us that as a deer hunter, he spends a lot of time in trees, "So this is no fear for M.P." Cathi yells, "Attack, attack, attack!" at Bill as he goes over. The four racers proceed down the ropes, all having a great time when they're not busy avoiding trees. Pretty scenery, to be sure.