This week, we are told, there will be a FAKE eviction and some familiar faces will return to the house... Eek!
Emma Willis made the exciting announcement during Friday night's live show.
Unaware of the twist, housemates will believe they are up for eviction as usual - but instead the evicted contestant will be heading to a secret lair.
The public will vote as normal, knowing that the housemate with the most votes will NOT be evicted but will be moved to the separate living quarters.
And legendary contestants from Big Brother's past will be joining them in there - YES!
Last month, famous former housemate Nikki Grahame dropped some heavy hints that she would be returning this summer... But we'll have to wait and see what Big Brother has up its sleeve!
We DO know that the 'secret lair' housemates will dramatically enter the main house during a special 'Big Brother Time Warp Week' launch programme on Sunday 14 June at 9pm on C5.
This twist kicks off 'Time Warp Week', which will include a series of time travelling surprises, classic tasks and a roll call of famous faces from the past.
For the duration of 'Time Warp Week', the returning housemates will live with this year's remaining contestants until a true eviction takes place on Friday 19 June.
Meanwhile, Eileen Daly became the eighth housemate to leave the house in the live Friday night eviction (5 June).
In her exit interview with BB host Emma Willis, the 51-year-old said: "It was a really intense atmosphere. Being the age I am I found it difficult and it was a real issue for me at one point."
The public voted to evict Eileen, and keep budding politician Joel Williams in the house.
Big Brother: Timebomb continues daily on C5 at 9pm.
See photos of the Big Brother: Timebomb 2015 house:
Copyright: Channel 5
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