The first thing to know about Dove Barkley is that, even though she works as a cyber security analyst, she is one hundred percent not an undercover CIA operative. But when a group of bad guys mistake her for her super-spy sister (news to her!), Dove gets roped into a dangerous government mission that she'd very much rather be left out of, thank you. Too bad Mendez, the man who claims to be her sister's partner, says she's in too deep to back out now. He's smart, capable, and has a body almost distracting enough to make Dove forget about the team of trained assassins after her. Dove has information that can help prevent a national tragedy, but there's mounting evidence that Mendez might not be who he claims. More importantly, she's running out of time to save her sister. Because the last thing Dove wants is for either of them to go out with a bang.