When a diamond broker's wife gets kidnapped, Rachel and Helen finds out the incident bears striking resemblance to the disappearance of his first wife seven years earlier. Dave McCall has to run the station in Hawker's absence, together with finding his runaway son and preventing his marriage from disintegrating. Teen pop sensation Milkshake film their latest music video in the harbor and the water Police are assigned to keep away the media. Emma Woods joins the dive team.