Sterling Archer is an agent with ISIS.
That acronym does not stand for the terror organization or would-be new Islamic caliphate. It refers to the International Secret Intelligence Service. As the name indicates, the agency is global in scope and deals with gathering, collating, analyzing, and then acting upon data concerning danger spots all over the world.
Exactly when the activities of this operative, and several of his fellow agents as well as those who provide much needed support services, take place is never really stated and, after a considerable number of those stories are told, the time period changes dramatically.
Archer is the best agent that ISIS has - at least in his own mind. To be honest he does accomplish the odd mission here and there so he should be considered successful in his work. Unfortunately, he also spends an inordinate amount of time proving that he is deep down a major narcissist and a woman-chaser. He also has intense mommy-issues stemming from the fact that his mother is Mallory Archer, likely the best agent that ISIS ever had and now its director.
Archer is 36 years old (which makes his whining a bit hard to take). He is extremely good looking, standing 6'2" and in excellent physical shape with black hair and blue eyes. He really is successful as an operative but he often proves the adage it is better to be lucky than good. When he does pull off a mission, it is usually because he has something to gain from it, not because it is what he is supposed to do.
Fighting alongside Archer is Lana Kane, likely ISIS's true best agent. She is (or was) also Archer's girl friend and really does care for him for which she deserves either a medal or therapy or both. Kane is a beautiful, athletic black woman who is extremely deadly with any weapon from her hands to the two Tec-9 machine pistols she prefers to carry.
Providing backup support as well as a host of interesting idiosyncrasies are Pam Poovey, ISIS's HR Director, Cyril Figgis, the comptroller of ISIS, Cheryl Tunt, slightly insane secretary to Mallory Archer, and Dr. Krieger, ISIS's gadgets inventor with some disturbing sexual proclivities.
As mentioned, the time period is which Archer's activities take place changes after a while as does what Archer actually does and who he does it for.
After 4 seasons of exciting adventures, ISIS gets disbanded by the American government and Archer and company have to find some other way to finance their activities (and Archer's more pressing issues like chasing women and drinking and looking after himself). From that point on, things get strange.