Nine contestants believe they're taking part in a reality competition show, but one of them is the least likely reality star ever: Josh. None of the players knows that four celebrities are secretly trying to rig the show to make Josh the winner.

After the first elimination, the celebrity panel must reveal their big secret to the departing player. And as the players take on their first challenge, will the celebrity panel's manipulation influence the vote for least and most favourite player?

A surprise 'power couple' enter the mansion and unsettle the group dynamics. A new challenge tests the contestants' ability to communicate, and one of the celebrities must enter the mansion as themselves, but not give the game away.

A social divide is forming in the mansion, prompting players to ask probing questions about Josh, and causing concern among the celebrity panel. And the carefully selected daily challenge reveals some shocking truths about the players.

The contestants must prepare a nerve-racking, high-stakes performance for their fellow players and celebrity guest Denise Van Outen. The celeb panel hope that reserved underdog Josh has it in him to deliver a showstopping performance.

With time running out, the celebrity panel decide they need back-up, in the form of 'The GC'. Reality star Gemma Collins is certain that she can make Josh shine. But The GC can be unpredictable, and the panel are worried their plan could misfire.