UCOS finds itself investigating a very old murder at the insistence of Stephen Fisher, a senior intelligence official who refuses to explain why he wants the case solved. On January 4, 1851 Abigail Padua was beaten to death in a London alleyway. She worked in the family business with her brother Sydney and was quite gifted at working with numbers. The Padua family's financial investments - and those of several other prominent citizens - failed leading Insp. Renfield, the investigating officer at the time, to believe that her death was more than just a simple robbery. UCOS finds that some of the witnesses had given contradictory statements to the police and the team quickly concludes that one of those witnesses was in fact the killer. Meanwhile, Jack has some news for the rest of the team - he doesn't tell them everything however.
—garykmcd