It was one of the craziest "challenges" in 'The Biggest Loser' (Tue., 8PM ET on NBC) history. Those quotations are there because even though this was a potential game changer, it was left entirely up to chance. Basically, a game of Plinko put the fate of one team entirely in the hands of one person.

!!SPOILER ALERT!!

That person turned out to be Sunny, who won a week-long trip home. The bad news was that her weight was going to be the only weight that counted for the Black Team this week. The good news was that Bob Harper was going home with her, though that left the rest of the Black Team without a trainer.

Nevertheless, they continued to prove themselves formidable on the scales, even if they're really not connecting on a personal level as a team. Meanwhile, Bonnie and Anna Kournikova have apparently reached a stalemate, with Anna making guesses as to what's going on with Bonnie, and Bonnie telling us at home that she's wrong.

The problem is that Bonnie shuts down and won't let those emotions out so that she and Anna can really confront the issue while it's happening. All that emotional locking up apparently froze her weight-loss as well, though luckily Becky more than made up for it and carried the Blue Team into safety.

The Red Team again only performed okay on the scales. Without Bob, the Black Team was right on track, save Antone who had his worst week yet. However, it all came down to Sunny, and apparently Bob was still upset that she made him ride a mechanical bull while they were in her hometown of Frisco, Texas.

He brutalized her all week in the gym and with a crazy last-chance workout at a farm. But it paid off as Sunny dropped a staggering 14 pounds in a week she only needed 7 to ensure her team's safety. Next week could be trouble for her, but she earned her Immunity this week.