Still missing Jack, the team reopens the disappearance five years earlier of PE teacher Jason Bowe when human remains are found at Peregrine Manor school, where he taught. Of the staff only support worker Helen Hanley is helpful. Stuffy Latin teacher Archie Millgrow argued with Jason about his over-familiarity with pupils whilst former student Eleanor, now the school secretary, and sports jock Oliver believed Jason was having an affair with pupil Melissa. Brian is more concerned that, despite falling intake numbers, school finances are surprisingly healthy and suspects Jason stumbled upon a plot by which wealthy donors subsidised the school in return for favours from old boy Geoffrey Parks, MP, Melissa's father. Then one of the suspects makes a confession but the team is not convinced and believes they are covering for someone else.