When Lucas, an agent investigating something subversive, gets off his train at the wrong station he is murdered. Has the crime got anything to do with a mole at the admiralty, a train ticket and a fiendish plot to kill the Prime Minister?
Quest roles:
John Laurie(Crewe), Dyson Lovell(Warren), Tim Barrett(Salt), James Hayter(Ticket Collector), Isla Blair(Bride), Drewe Henley(Groom), Richard Caldicot(Admiral), Michael Nightingale(Lucas), Noel Davis(Secretary)