First broadcast 25th/26th September 2004.
The team investigates the derailment of a train caused by someone leaving Maj. Mark Wiltshire's Land Rover on the tracks.
Amita Dhiri - Diana Baker
Simran Sandhu - Sarah Baker
Emma Cunniffe - Rosa Christie
Danny Webb - Sergeant Paul Bradley
Emilia Fox - Nikki Alexander
William Gaminara - Leo Dalton
Tom Ward - Dr. Harry Cunningham
Sean Murray - Joe Moss
Paul Hilton - William Gould
Cordelia Bugeja - Doctor Bennett
Stephen Boxer - Major Mark Wiltshire
Shaun Parkes - DI Freeman
Colin Tierney - Thomas Christie
Sebastian Hurst-Palmer - Luke Christie
Robyn Cooper - Alice Christie
Patricia Kerrigan - Katie Wiltshire
Michael Webber - Maurice Garton
Tony Bluto - Delivery Man
Talisa Garcia - Suzi Bradley
Stuart Antony - Mark
Kieran Bew - Stephen Wiltshire
Kate Bickford - Woman
Nicholas Hewetson - Peter
Dave Hill - Mr. Hall
Eddie Marsan - Derek Poutney
Jay Martin - Private Vickery
Benn Northover - Michael Otty
Clare Wilkie - Emille
Jane Wood - Mrs. Hall
