"Knock knock." "Who's there?" "Rob's karma." "Rob's karma who?" "Rob's karma THIS." Yes, this is the night when we learn that you can get away with a lot of grinning and tough talk about other teams until the moment when you egregiously screw up, at which point every self-satisfied thing you say -- and particularly every dismissive thing you say about people who are, unbeknownst to you, ahead of you -- takes on a delightfully ironic flavor. This lesson is driven home to one Rob Mariano after he makes one too many playful jabs to scare Meredith and Gretchen and Uchenna and Joyce, and winds up scaring them intoinvestigating a flight they never would have found without "help." When he gets entirely rotten information from a ticket agent, Rob concludes that he's in the clear, and he and Amber and Ron and Kelly have a brief moment of peace in Turkey before realizing that they're actually fighting for last place this time. Despite Gretchen's lengthy sojourn up the side of a tower and the trouble she and Meredith apparently have finding clue boxes in fairly unchallenging situations, they finish second behind a surging Uchenna and Joyce. Rob and Amber beat out Ron and Kelly for third place, and all of a sudden, it's a whole new ball game as the pageant queen and the POW lose all their loot. Oh, and Kelly basically does accuse Ron of using his POW status as a cheap way to avoid his commitment to the military. It's almost unbelievable, but her comment to this effect is actually more offensive than it looked in the preview. I know -- it seems impossible. It isn't. Oh, and -- did you know Travelocity was a sponsor of this show? I bet you do now.