Monty Nash is a top agent for Department of Counter Intelligence.
The D.C.I. is a very covert member of the Intelligence community dedicated to what Nash calls "Offensive Intelligence", taking the war to those who would make war on the U.S. Assigned to the European Section, he is the "Fox Head of a first squad", which apparently makes him a very valuable man. A former lawyer, engaged to a sexy blonde in Cleveland, he left the legal profession to better serve his country in the back alleys of the gray world of espionage fighting. When asked why, he would likely shrug, feeling the idea of patriotism being too corny for such a cynic such as he. He has been doing so for the past five years when the series begins.
In his mid 30's as the series begins, he is darned good with a gun, hand-to-hand fighting, and a knife. He is also an opinionated, argumentative, "got up on the wrong side of the bed" irritant to his superiors. But he gets the job done so they grimace and let his tirades slide. Usually.
A former Marine, Nash enjoys the job he has as leader of team but he is even more comfortable on his own, relying on no one but his own abilities. He thinks at times of getting out but the thought of trying to restart his law practice melds into the difficulty of telling his overworked boss that he was leaving. Though Nash knows there are at least 30 other teams in the D.C.I., he know he leads their best.
The adventures he gets involved with are generally low-keyed, more like detective noir than international intrigue, and that definitely fits the character.