A retired operative with a secret past....
Jim Tyler has been mothballed by the CIA due to an incident for which he was the scapegoat as the leader of the team. Consequently Jim is hiding out doing odd jobs repenting for the crime he didn't commit. An ex colleague, Mark, whose sister Jill, Jim was dating before, is sent in to retrieve a secret project and ensure it does not get into the hands if the terrorists. Unfortunately they capture him and Jim is pulled back into service to retrieve the project and determine how complicit Mark now is with the terrorists and take appropriate action....
This tale is essentially a one man rescue mission and CIA drone strikes. There is intrigue, suspense, lots of killing, torture, stealth, Morse code, computer programs, EMPs and also a perspective from the terrorists side that makes fascinating reading.
A fun novel with movie-like sequences (which the book cleverly?) points out.... Perhaps would be played by Arnold or maybe a younger Harrison?