Ron and Kelly, reporting that they spent an hour in the cab, arrive at the Dome and run up to the Yield mat to receive the bad news. "This is the nail in the coffin," Ron says. So wait, do Ron and Kelly themselves think they're behind, in addition to Rob and Amber thinking they're behind? It's like there's something up here, but I don't know what it is. I can only plead confusion.
Uchenna and Joyce move their fourth boat. Meredith and Gretchen struggle with their second. Gretchen comments in a suspiciously warm voice-over about how nice Uchenna and Joyce are, and how great their friendship has been. In fact, Uchenna tries to help Meredith and Gretchen push their boat, until Gretchen reminds him that help isn't allowed. Uchenna remembers that that's right, and he backs off. Uchenna explains as he hauls out his last boat that Gretchen and Meredith are such nice people that he hates to see them "breaking their backs." Me, too, which is why I will never understand why they chose this task. ["And regardless, Uchenna, love you, mean it, but: raaaaaaace!" -- Sars] At any rate, Uchenna and Joyce finish the task, and they get the clue for the Dome. They also note the existence of the Yield. Gretchen snaps at Meredith as they try to unload another boat.
Joyce and Uchenna ask a cab driver for the Millennium Dome, and they ask him whether it's easier to take a train or a cab. The driver actually tells them that the train will be better at this time of day, so that's one point for London's most honest cabbie.
Meredith and Gretchen finish stacking their fourth boat. Uchenna and Joyce get directions on the subway to the Millennium Dome. Meredith and Gretchen finally get their last boat stacked. They immediately decide to take a cab to the Dome, because I don't know. Either they don't know the train might be faster, or they don't care. Meanwhile, Uchenna and Joyce think they're waiting on the platform for the train, but they're not actually in the station; they're sort of next to the tracks. Meredith and Gretchen get a cab, and Meredith says that someone might have some trouble getting somewhere, and in the typical way in which the editing sometimes suggests that the unexpected should be expected, we then watch that train race right by Uchenna and Joyce. It might have been a clue to them that there is no one anywhere around waiting for trains.