First broadcast 24th December 1981.br br Christmas is approaching. The work party reports seeing a group of men in the distance.br br br Ann Bell - Marion Jeffersonbr Renée Asherson - Sylvia Ashburtonbr Patricia Lawrence - Sister Ulricabr Stephanie Cole - Dr. Beatrice Masonbr Louise Jameson - Blanche Simmonsbr Stephanie Beacham - Rose Millarbr Burt Kwouk - Capt. Yamauchibr Elizabeth Chambers - Mrs. Van Meyerbr Jeananne Crowley - Nellie Keenebr Claire Oberman - Kate Norrisbr Veronica Roberts - Dorothy Bennettbr Joanna Hole - Sally Markhambr Emily Bolton - Christina Campbellbr Karin Foley - Debbie Bowenbr Maya Woolfe - Gerdabr Eiji Kusuhara - Lt.