Charlotte Mission is an agent with the NSIB.
That stands for the National Security Investigative Bureau.
And she is "not technically a spy anymore", as she tells herself at the beginning of the first recorded adventure; said with a considerable amount of annoyance as she walked down a deserted Main Street in Gossip, Texas. She had just arrived there by bus with just a tiny carry-on case.
Mission is heading to the Gossip Inn, an impressive former museum owned and run by her grandmother, Gamma Georgina Mission, "the woman I'd based my entire life off of. She was a retired spy, and why she'd decided to settle and start an inn here was a question that needed answering". As Mission remembers, "the last time I'd seen her, she'd been on a mission to take down a terrorist cell in a city int he Middle East. Now, she baked cookies and waited on people." Such a life was looming for Charlotte Mission, too.
Mission (the younger, not the elder) is in forced hiding since Kyle Turner, a fellow NSIB agent and her ex-husband, went rogue and she was the one who discovered it and now he is out for revenge and since he has a mole inside the HQ of NSIB, she needs to lay low until the matter can be rectified.
So now she is Charlotte 'Charlie' Jean Smith, an aspiring actress who is taking a sabbatical to work for her 'aunt' at the inn, all the while staying out of trouble and being inconspicuous.
Well, that will prove to be a challenge as Mission will find she is a magnet for trouble which usually includes dead bodies (not of her making) whose murders need to be solved. And somehow without meaning to, she will become Gossip's first and only 'fixer.' With her particular set of skills and a secret armory at her disposal, Charlie's the person folks around town come to when they're in deep, seemingly irreversible trouble.
And there will be the whole ex-husband and co. out to kill her and the occasional NSIB matter and Mission will have a very, very busy 'sedate' life. As she tells us, "the physical stuff was easy. It was everything else that I struggled with. Emotions. People. Not getting into trouble." Especially the last one.