A man with no memory is recruited by a secret black ops program in this thrilling 4-book series by USA Today Bestselling Author Mike Ryan.Books included:The Cain ConspiracyThe Cain DeceptionThe Cain DirectiveThe Cain RedemptionShot in the head and recovering from brain surgery, Delta Force soldier Thomas Nelson wakes up in a military hospital unable to remember who he is. Faced with going through recovery alone, with no family that he's aware of, he is recruited by a top secret government agency. Project Specter is tasked with eliminating targets they deem to be a threat to the United States. Their goal is to turn Nelson into a super assassin named Matthew Cain.Follow along with Cain's journey as he transitions into a lethal government operative and battles criminal forces, as well as finding out a secret that could undermine everything.