As if the earlier shout-out to 24-Hour Fitness wasn't enough, Bob now invades one of its gyms and puts all the people there through a workout. Then he hosts a little Q&A session, fielding questions about bad knees and losing those last five pounds, and whether one lady (who I suspect is a plant) can take him home. "Sure, let's go," Bob says. But seriously, here's this new Verizon BlackBerry app thing you can download. Sneaky, Bob.

The remaining singletons, Daris and Ashley and Michael, are discovering a bond, and they do a little secret stairwell workout, which Michael hopes will put the two remaining teams below the yellow line. They climb all the way to the 33rd floor together and back.

Oh, here are those cowboy hats. Wearing them, the Losers walk into a rodeo arena where Sami is waiting next to little corrals decorated with their names and colors. Sami tells them Texans are all about grabbing the bull by the horns, and today, they will be too. Then they turn to see a man in a cream-colored duster leading in a big white bull with a terrifying pair of long, curly horns. After giving them plenty of time to be intimidated, Sami assures them, "Your trouble's a little smaller," and as an unruly calf is led in, she adds, "but with a little more attitude." Apparently there are a lot more calves on their way in, and the challenge will be to try to herd the most calves into their pens. And the reward? Immunity. That's a pretty good reward.