Follows a day in the life of register Dr Deborah Bernstein as she attends to patients in the emergency department of Melbourne's Alfred Hospital.

The Ambo's attend to a three-year-old suffering breathing difficulties, and an assault victim, while a motorcycle accident victim presents to ER.

A bizarre freak accident sees a 21-year-old salesman preparing for open-heart surgery; an old patient returns to the ER.

An elderly man presents to the ER complaining of dizziness, unaware he's critically ill; behind the scenes with the Metropolitan Ambulance Service.

A serious car accident sees a young Swedish backpacker present to the ER in a critical condition; an acrobatic circus performer arrives with an injury that could end his career.

Paramedics treat a woman who has collapsed at a concert and a car accident involving a family; a young dancer presents to the ER with a serve allergic reaction.