WANTED: NANNYMUST BE GOOD WITH WET WIPES AND GUNS.Lacey Miles becomes the unexpected sole guardian of her young niece. Knee-deep into an investigation of a sleeper cell, Lacey finds that motherhood is a lot more perilous than she expected, so she hires a nanny with an impeccable résumé…who's a far cry from Mary Poppins.Beneath his friendly demeanor, Jim Mercer is a former Marine turned undercover agent, tasked with ferreting out the terrorists targeting Lacey and her loved ones. Jim may be...