The competition is already getting fierce and heated on season 5 of MasterChef, and the battle between two aspiring chefs gets so bad, it forces judge Gordon Ramsay to step in and break things up.

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As they prepare meals for their next challenge, a nasty argument breaks out between Leslie Gilliams, a stay-at-home dad from Malibu, Calif. and Elizabeth Cauvel, an advertising executive from Brooklyn, N.Y., after Cauvel makes an off-handed comment to Ramsay about Gilliams doing more talking than cooking.

After explaining what she was making to Ramsay, he asked her who would screw up, and she pointed in front of her and mouthed "Leslie."

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"Why Leslie?" Ramsay asks.

"He likes to flap his jaws and not cook so much," she replies.

Gilliams didn't like what he heard, and didn't hesitate to defend himself.

"I've never said anything to you Elizabeth, not even once," Gilliams says. "You want to get ugly, let's get ugly. You don't know where the hell I've been."

The argument only escalates as Cauvel points out that he is from Malibu, and he attacks her work ethic outside of the kitchen.

"You know why I live in Malibu? It's because I worked my a-- off, do you know what work is?" he says. "I got where I got because I worked."

After Gilliams continues on his tirade, Ramsay is forced to step in and end his rant.

"You're the oldest, one of the most mature," Ramsay says to him. "Start showing it."

Gilliams then apologizes to Cauvel and the two continue working on their challenge.

However, in an interview with Yahoo! both Gilliams and Cauvel defended their actions during the upcoming episode.

"I was definitely singled out by the contestants," Gilliams said. "I felt like I was being judged, and no one knew me as a person."

"It's our first mystery box challenge, so everybody was more stressed than normal," Cauvel explained. "You're trying to concentrate, and you have the judges coming around asking you questions...You're trying to juggle a lot of things."

MasterChef airs Mondays at 8 p.m. on FOX.