Scrappy Traffic Enforcement agent Maisie McGrane has finally landed her dream job as a Chicago police officer. There's just one catch. She must remain undercover as a meter maid to gather evidence against Stannislav Renko, a charismatic Serbian mobster running a brutal multi-million dollar mobile chop-shop operation. When Maisie is targeted by a killer who leaves a body slumped against her car, Renko comes to her rescue and takes her under his wing. From her perch inside the crime boss's inner circle, Maisie sets up a daring sting operation to take down Renko once and for all. But can she pull it off before her family of overprotective Irish cops and her sexy ex-Army Ranger boyfriend blow her cover?