Big Brother S3E21 21 October 2025 on ITV2

On Tuesday 21 October 2025, ITV2 broadcasts Big Brother!

Season 3 Episode 21 Episode Summary

The upcoming episode of “Big Brother” promises to bring excitement and drama as a new cast of housemates enters the iconic reality TV home. Viewers can expect a diverse group of individuals, each with their own unique backgrounds and stories. This season aims to showcase a mix of personalities, which is sure to create interesting dynamics within the house.

As the housemates settle in, the cameras will be rolling 24/7, capturing every moment of their interactions. The audience will have a front-row seat to all the friendships, conflicts, and alliances that develop over the next six weeks. With twists and turns around every corner, the tension is bound to rise as housemates navigate their new environment and the challenges that come with it.

Fans of the show can look forward to unexpected surprises and game-changing decisions that will keep them guessing. With the nation tuned in, the stakes are high, and each choice made by the housemates could lead to shocking outcomes. This episode is set to be a thrilling start to a new season, filled with anticipation and excitement.

What Time is the Episode On?

The episode of Big Brother will be broadcast on October 21 2025 on ITV2 at 9:00 PM.

Is the Episode New?

The episode of Big Brother is all new!

Big Brother Cast & Stars

Main Cast

Episode Videos & Previews

Watch Big Brother Online

Watch the show online

Big Brother Series Information

Big Brother will see a new cast of carefully selected housemates, from all walks of life, become the first people to take up residence in the brand-new Big Brother house as they arrive at the famous destination in front of a live studio audience. Given its own contemporary new look ready for this reimagining of the show, the iconic Big Brother house will play host to all the action - clever tasks, nail-biting nominations and live evictions will be back. The public once again plays a crucial role, voting throughout the series and ultimately determining the winner, who will walk away with a life changing cash prize.