When an Israeli diplomat is murdered in Syria by a lone sniper, the CIA intervenes. Their only evidence is a single .308 shell casing and a piece of partially corrupted DNA found on a cigarette butt from the sniper's vantage point. The DNA matches that of an agent deep within the CIA who had the knowledge and the skill to perform the murder. Jack McDaniel, a top CIA agent, is charged with the crime and espionage. Jack must escape the clutches of the CIA to prove his innocence. With a handful of clues he escapes to the Middle East to find the real murderer and bring him to justice. The CIA engages the services of an Israeli Asset within the Mossad. Aleah, a female agent, has a new assignment. She must track down Jack McDaniel and kill him. The chase takes them across the Middle East, where Jack learns his twin brother, supposedly killed in Afghanistan during the War on Terror, may be alive and working for the other side. To prove his innocence, he must find his brother in an Arabic world. Ultimately, Aleah must make the most important decision of her life. She must choose between duty to her country or the life of the man she loves. Twin is a whirlwind of espionage and international intrigue