When does Good Sam return?

Jason Isaacs as Dr. Rob Griffith, the Chief of Surgery at Lakeshore Sentinel Hospital, is shot at his hospital and he falls into a coma. Six months later Dr. Sam Griffith, his daughter, takes over as the new chief of surgery. Sam finds out that Dr. Lex Trulie, her best friend and fellow doctor, is having an affair with Griff. Sam performs a complicated heart transplant successfully.
Samantha Griffith (Sophia Bush) becomes the top surgeon at Lakeshore Sentinel Hospital after her boss and father, Dr. Rob Griffith (Jason Isaacs), falls into a coma. Her life becomes complicated when he awakens and wants to resume surgery, which means Samantha would be supervising him.