I like the structure of the logline. Every important element is mentioned.
What I don’t get is why the top notch agent enlists the help of her lazy, post war, pension living boyfriend?
I wouldn’t do that when I’m on my way to stop a drug that is threating to wipe out an entire city.
In scripts like this you need CONTRAST between your two main characters. It works best when you have two different types of persons.
You can create tension and conflict within your protagonists and, by that, drive the story forward.
Just think about? Dr. Watson and Sherlock Holmes.
This gives your story an extra boost.
Another possibility is to add one character that doesn’t have any or maybe even bad experiences with being an agent.
You stated in your logline that her boyfriend is a “post-war” guy.
Maybe is he traumatized or was fired earlier on due to his incompetence. That way you can raise the stakes, because? your characters are not the type of persons you would think of succeeding in the first place. It makes for a great story concept.
I hope that helps.