This year Big Brother is getting tough and has brought back the prison to lock up unruly housemates.
Previously featured in the ninth series in 2008, the jail in the garden will see housemates locked away from their fellow wannabes at Big Brother's pleasure.
Expect Big Brother to be harder and harsher than ever this year, with bosses promising that the housemates will be subjected to countless twists, turns and tough tasks.
This year's series will see a twist on the format, and suspicion will be rife in the house as the housemates attempt to untangle Big Brother’s web of secrets and lies. How will they separate the fact from the fiction and do they have secrets of their own?
From the moment the new housemates enter they'll be thrown into a BB's first twist, a wall full of doors, but what do they mean and what's behind them?
Meanwhile, the bicycle in the bedroom would suggest this year's housemates may have to put some effort in to get rewarded with luxuries such as electricity, while the amount of seats around the dining area would suggest up to twelve people living together.
Big Brother 2013 starts on Thursday night on Channel 5, hosted by Emma Willis.
Browse pictures of the new look BB house below...