In the first episode, in a bid to win the respect of a new consultant, Cath, Ameer, Simon and Rhian try to out-do each other on the wards. Their quest leads them to a final twist none of them expected.

 
Later, new specialties for the junior doctors bring with them their own challenges. Rhian faces huge pressure in work and her private life whilst Simon searches for the meaning of truelove.
 
In episode 3, it should be a quiet Sunday night shift, but with a suicidal radio DJ, a quest to save the work of a doctor’s lifetime and Ameer’s stalker to deal with, the gang have their work cut out.
 
In Episode 4 we see Cath, Rhian and Ameer attempting to discover why Simon is convinced of his own early demise – with surprising results. Alongside this, Simon helps Sister Alice with a special secret project. 
 
Later, Ameer questions whether he puts his faith, and the faith of others, aside in order to save lives. Alun battles with his urge to satisfy his desire for a forbidden fruit. 
 

The series reaches a climactic conclusion as Cath’s birthday takes a tragic turn - twelve year-old Gabby dies in her arms and makes her question her life choices.