Channel 5 note that Sophie went back with the group and over the next hour this afternoon, each of the remaining housemates will one by one go and hide in the store room.
They have each numbered themselves in an order of attempting to hide that has to be adhered to, the aim is to eventually get the whole house disappearing from the house for as long as possible without Jack & Joe noticing.
If enough housemates manage to hide in the store room without Jack & Joe realising they disappeared, they will pass the task and the house will win a reward.
If Jack & Joe discover the housemates, they will win a separate treat for just them two.
Big Brother, nightly on Channel 5