Conclusion of the two-part documentary in which four famous faces work alongside the staff of King's College Hospital, London. Ann Widdecombe tackles the bed crisis head-on by becoming a bed manager, while Stacey Dooley is in the cardiac unit - the first of its kind to treat heart attacks while they are happening. Jonnie Peacock discovers how the staff look after their most vulnerable patients on the children's ward, and as Michael Mosley shadows the junior doctors treating injuries and diseases of the neck, he wants to know what gives them the strength, knowing they face 18 years of training to become a consultant.