There are a lot of things Mary Shannon hates. Right at the top of the list? Con men. And not too far below them? Her ex-husband. So when both re-enter her life at the same time, Mary's in for one hell of a week.
When Mary busts Marshall's witness Ronnie McIntire, an allegedly reformed con man accused of bilking money from unsuspecting seniors, she's hoping to get him kicked out of the program and packed off to prison. Unfortunately for Mary, the FBI is onto Ronnie too, and they're eager to take advantage of his access to notorious arms trafficker Julian Conran. Since Conran happens to have a thing for busty blondes, Mary soon finds herself strapped into a push-up bra and going undercover in an effort to protect Ronnie and get the goods on Conran.
While Mary might have been able to see through Ronnie's lies from day one, when her ex-husband Mark shows up at her door her feelings are less clear: sparks still fly between the two, but Mary is reluctant to give it another shot.
