 Kate is posted to the Fremantle Class HMAS "Hammersley" against her will, intending to do the mandatory six-month stint on the patrol boat before running back to her beloved frigates.At the beginning of her posting she is cold and distant, and seems to rub the crew the wrong way, and the crew in turn take pleasure in her mistakes.In the first episode 'Welcome Aboard', she allows chief engineer Andy "Charge" Thorpe to take down one of the engines without first checking with the CO.