Rob, Cath, Rhian and Ameer arrive at Cardiff City Hospital as newly-qualified junior doctors. Can they get through the day with their careers intact?

Drama from the creator of Hustle, following a group of four young doctors as they start their careers at Cardiff City Hospital and face the steepest learning curves of their lives.

Cath and Ameer interview for a new flatmate but the candidates range from the sublime to the ridiculous. Rhian saves the life of Simon's mentor, Darth, but can she save Simon from his lonely situation?

Ameer struggles to effectively communicate bad news; can he be styled into the suave doctor he needs to be in order to get ahead?

Cath probes Rhian into finding a solution for her non-existent love life, while Simon battles with himself to find the courage to ask her out.

Cath is suspended from work and her father is admitted to hospital. Everything she holds dear is in the balance.

In a bid to win the respect and favour of a mystery new consultant, junior doctors Cath, Ameer, Simon and Rhian try to outdo each other on the wards. Their one-upmanship brings them more than they bargained for, and their quest leads them to a final twist they did not expect.

New roles for the junior doctors bring with them their own challenges. Rhian faces huge pressure in work and her private life suffers as a result, whilst Simon searches for the meaning of true love. Though love may come and go, Rhian realises that friendship is forever.

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.

Cath, Rhian and Ameer try to discover why Simon is convinced of his own early demise. Simon helps Sister Alice with a special secret project.

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.

Cath's birthday takes a tragic turn as 12-year-old Gabby dies in her arms, making her question her life choices.