Porsche and the newbies had the game in the bag when Porsche won HOH on 'Big Brother' (Wed., 8PM ET on CBS). Put up Rachel and Jordan and then no matter what you can evict one of them. But then Porsche had to go and get greedy and open Pandora's Box.

!!SPOILER ALERT!!

As we know, this re-implemented the duos twist for one week, thus creating a solid unit out of Jordan and Rachel. Now all they needed to do was win the Power of Veto challenge and the producers couldn't have picked one better-suited for the Veterans.

It was essentially a repeat of the banana challenge from the first week, and Rachel easily won that one. This time she could convince herself she was hanging on to her dear, sweet Brendon and she probably would have hung there forever.

Love her or hate her -- and she drives me crazy -- Rachel knows how to compete, and suddenly she and Jordan are looking pretty good in this game. By winning the Power of Veto, with Kalia surprisingly her biggest competitor, Rachel removes herself and Jordan from the block, and automatically puts Adam and Shelly there instead.

Suddenly Pandora's Box may well be the turning point in the game. Porsche and Kalia wisely left themselves open to a possible Final Four scenario with the veterans, just in case this happened. The big question now is who goes home first? Shelly has played a very aggressive and risky social game, but she was sincere in her apology to Jordan, and then played an aggressively submissive scene where she groveled before the veterans.

Right now, they have the power in determining who stays in the house, and Shelly mending fences with someone who was once her strong ally may be just what she needs to do. But Shelly is playing for Shelly, so if she does stay, she becomes the swing vote between the newbie duo and the veteran duo.

It would be better for Porsche and Kalia for Adam to stay because even though he's mostly Jell-O, he's at least pretty solidly in their corner right now. Of course, the next HOH is definitely the one that's going to determine who rules the house into the finals ... I know I said that about this one, but the duos twist messed that up.

If somehow Adam or Shelly wins it, then everything will get turned upside down, but it seems unlikely for either of them to win anything, without someone handing it to them. As Jordan isn't that great in challenges either, it's pretty much Rachel against Porsche and Kalia.

It's anybody's game at this point ... well, except for Adam. I would be stunned if he won this season based on who's in the Jury already and who could be headed there.