Ty makes arrangements to meet Fiz for lunch but grows concerned when she fails to turn up. She is unconscious and alone at No. 5. Carla starts to suspect Rob is trying to rip her off. Later, a doctor reveals Fiz has carbon monoxide poisoning and a dodgy boiler is to blame making Ty realise that it could be his fault. Carla interrogates Michelle & Rob over the accounts. Gail’s delighted as Lewis continues to compliment her. And Nick is not in the mood for celebrating.