First broadcast 2nd3rd February 2015.br br Whilst cage-fighting Jack takes on young Dean Fallon, drug dealer and son of career criminal Terry Fallon.br br Emilia Fox - Dr. Nikki Alexanderbr Richard Lintern - Dr. Thomas Chamberlainbr David Caves - Jack Hodgsonbr Liz Carr - Clarissa Mullerybr Joanne Adams - Mrs.