One Big Brother housemate could steal up to £20,000 of the prize fund this week.
It could leave this year's winner leaving with 'just' £65,000 after a further £15,000 was previously deducted for the last standing second chance housemate, either Sam or Andrew.
However in order to win the £20,000, the one housemate will have to stab all the others in the back at the end of the week's 'Steal' task.
In tonight's show, it was the start of the twist with housemates split into two teams, thinking that they're working together to try and win money for the prize fund.
In the gold team are Andrew, Ellie, Hannah, Isabelle, Kieran and Sam while Chanelle, Charlotte, Deborah, Raph and Tom make up the black team.
In one task to win cash, Tom and Hannah went head to head in eating disgusting fermented eggs. Tom won the challenge and secured £2,000 for his team.
In another task, Raph and Andrew competed against each other in a game of nerves. Big Brother announced an amount of money, which in time increased in value. Raph and Andrew could buzz in at anytime – only once – to win the amount.
But if they waited too long to buzz in and Big Brother sounded a klaxon, neither of them would win the money. The monetary value increased however the klaxon sounded before either housemate buzzed in, leaving both teams with nothing.
As well as taking part in challenges to win money for their teams, there’s also a buzzer in the living area. The buzzer will activate at random points over the next few days, when this activates the first person that presses this buzzer will win money for their team, that monetary value will be displayed on a screen in the living area.
However it's not just winning cash: As part of the task, Isabelle was called to the diary room and faced with the temptation of speaking to her sister on the phone. She spent £150 picking up the phone.
Chanelle was also called to the diary room and faced with the temptation to spend the night with her boyfriend Jake in the spare room, costing her £400.
Meanwhile, Channel 5 has confirmed a double eviction will take place in this Friday night's latest live show from 10PM.
Big Brother continues nightly on Channel 5.