 He also gets to flex his muscles in a dramatic knife fight with one of the Chinese people smugglers, and again when he confronts Campbell Fulton for assaulting Nikki.As chief medic Swain is often called upon to put himself at risk to help others, so the crew are surprised when he asks to be excused from a high risk mission to a radioactive Island.But Swain is a father, and he and Sally are trying for a second child, is there a point when he has to put his own interests ahead of others?