 Though he wears the ranks insignia of a Petty Officer in episodes, and in all subsequent seasons he is shown as Petty Officer Chris Blake.In the second season, "Swain" is back on the new "Armidale" class patrol boat, also named HMAS "Hammersley", resuming his role as chief medic and coxswain.But unlike a year ago, "Swain" now has six-month-old baby daughter.