Kavanagh's personal views and professional pride clash when his clerk Tom asks him to represent a former girlfriend Susannah Emmott. After they split she was briefly married to a Jehovah's Witness whose beliefs she took on before he became disillusioned and left her. She has a son, Luke, aged thirteen, whose father knows nothing of him and who needs a life-saving blood transfusion, which is against Susannah's religious beliefs. Jeremy gets himself involved with a group of tree-huggers out to save local woodlands.
