Lord Alan Sugar's plan to fire two stars set to shake up Celebrity Apprentice Australia

Things are getting heated in the Boardroom in tonight's episode of Celebrity Apprentice Australia 2021.

Lord Alan Sugar is planning to fire two stars, and from the looks of a new preview, the contestants will be doing everything they can to make sure they won't be in the firing line.

Stream the latest episodes of Celebrity Apprentice Australia for free on 9Now.

"I've never done this, ever, ever before — two people are going," he reveals to the shocked celebrities.

A voice-over adds the contestants should watch their backs: "No celebrity is safe... and the knives are out."

The sneak peek highlights three potential feuds to watch out for. There is comedian Ross Noble's clash with popstars The Veronicas.

"Let me finish," he tells the duo.

Lisa Origliasso from the pop duo responds, "You're speaking a lot Ross and it's not making a lot of sense."

"Ross is going down in flames," she later reveals.

The footage then cuts to a shot of designer Camilla Franks and influencer Martha Kalifatidis in a shop.

"You are driving me mental," Camilla tells Martha before the former MAFS bride gets a chance to strike back in the Boardroom.

"She just couldn't help herself," Martha says.

And then we see David Genat put his Survivor skills to use when he sets up fitness expert Michelle Bridges for a possible backstabbing.

"I've got your back in the boardroom and I'm want to make sure you go through," he tells a wary Michelle.

Then his true intentions come out in a solo interview: "I'm hoping Michelle Bridges gets fired today."

We later see Michelle in tears as a voice-over tells us, "The showbiz showdown you cannot miss."

Celebrity Apprentice Australia airs Sunday at 7pm and Monday and Tuesday at 7.30pm on Nine and 9Now. Stream the latest episodes of Celebrity Apprentice Australia for free on 9Now.