Lieutenant Maria Sanchez, head of the Homicide Division in the Satin Valley Police Department (SVPD) in California, USA, and Detective Chief Inspector Colin Lee of London"s Metropolitan CID, collaborate to investigate a possible link between a murder in California and two killings in London. After gathering all the evidence from the UK and the USA Colin Lee devises plans to arrest the perpetrators on both sides of the Atlantic. Then, while he is briefing his team, he receives a phone call.