The Block is already at the centre of controversy with plans for next year's season facing backlash from locals at the proposed site in Byron Bay.
But the forthcoming 2021 season of Nine's hit renovation show will also have its fair share of scandal, according to host Scott Cam.
The 58-year-old revealed to TV Week that a 'cheating scandal' - billed as the biggest in the franchise's history - will 'change everything'.
The Block's biggest scandal: Host Scott Cam (pictured) has revealed a cheating plot on the new season will 'change everything'
'There's something massive on the horizon that comes from the contestants themselves and it turns The Block on its head,' said the TV tradie.
Returning contestant Ronnie Caceres, who starred alongside wife Georgia in the 2017 season, described the moment as 'the biggest cheating scandal in TV history'.
The as-yet undisclosed scandal will be one of several shake-ups this season as the contestants renovate a cul-de-sac of homes in the Melbourne suburb of Hampton.
The 2021 series will also see contestants building with 'no plans' for the first time.
Big call: Returning contestant Ronnie Caceres, who starred alongside wife Georgia in the 2017 season, described the moment as 'the biggest cheating scandal in TV history'
It comes days after a Byron Bay resident who is suffering from cancer and is in palliative care revealed she'd refused to sell her home of 11 years to Block producers.
The Nine show allegedly wanted to purchase her property for the 2022 season.
But Dorothy May, 74, said she'd rejected an offer of $2million, despite this being $500,000 above her home's market value.
Backlash: It comes days after a Byron Bay resident who is suffering from cancer revealed she'd refused to sell her home of 11 years to Block producers. Pictured: Scott Cam and Shelley Craft
'I live in the middle of five houses [they want to use] and
