Jack and Strickland form an unlikely alliance that sees them break the rules to find out why a British soldier died while taking part in a Ministry of Defence medical trial. With three of the man's colleagues now suffering from psychological, drink or memory problems, the team consider whether he died as a result of the experiment, or if he was a victim of an Army cover-up.
Quest roles:
Anthony Calf, Susan Jameson(Esther Lane), Rene Zagger(Andy Merrill), Sam Hazeldine(Mark Lane), Ralph Ineson(D I Hamilton), Nicole Charles(Alicia Trimble), Michael Simkins(Colonel Kilmartin), Andrew Tiernan(Sgt Major Sharratt), Will Keen(Ronnie Glazebrook), Phyllis Logan(Dr. Mathieson), Paul Bown(Rod Erskine), Ellen Thomas(Cora Trimble)