Software developer Joseph McClarin awakes to find a strange man who has inexplicably appeared in his house, with no knowledge of how he got there. After initially dismissing the event as a strange, but random encounter, Joe begins seeing this man in other places, and discovers that not only are the two somehow connected, but both appear to be involved in the deadliest potential terrorist attack in U.S. history. Unsure if this stranger is friend, foe, or just insane, he must unravel the mystery and try to do the right thing to protect his family, and possibly save the lives of millions