Dead Set:

Episode 3

At the country house Riq turns on the E4 live feed to try and determine what has happened at the BB studio.

Meanwhile in the greenhouse Grayson tries to comfort Angel. When she stops breathing Grayson realises he needs to kill her in case she turns into a zombie. But can he bring himself to do it?

On the live feed at the country house Riq sees the housemates re-entering the BB house and is relieved to see Kelly on screen. She is alive.