An "Epic Meltdown" on 'The Biggest Loser' (VIDEO)

Everything wasn't peachy on tonight's 'Biggest Loser' (Tue., 8PM ET on NBC). Tempers flared, as one contestant had a total meltdown -- and it was all over a simple peach dessert.

[Warning: Spoiler alert.]

Tonight's first challenge should have been easy. Members of each team had to cook a full meal -- including a dessert. The Blue and Black Teams handled the cooking part just fine, and both made sweet dishes out of peaches.

But as a tiebreaker challenge, the squads had to guess the number of calories in each team's dessert. Which is when Team Black started to implode.

While the Blues calmly debated the calorie count, Team Black panicked and collapsed. Alfredo "Frado" Dinten began yelling at his two teammates. He shouted, cursed, pouted, walked away -- then came back and shouted some more. Brendan took the brunt of Frado's abuse, while Ada gazed at them in panic, and wondered why everyone couldn't just settle down.

Meanwhile, the Blue players mocked the other squad, with Jesse saying they were having "an epic meltdown." Host Alison Sweeney looked appalled by the whole thing. In the end, everyone had to present their calorie guesses to Ali. Team Blue guessed 109 calories; the Blacks went with 185. Who would win? Would the cool and collected Blues beat the passionate Black Team?