When a medical robot insists he's having a heart attack, Marlee Evans, a pragmatic maintenance technician, has every reason to panic. There's a bomb inside him. Since Marlee can't risk the bomber discovering she's found the device, her only option is to kidnap Deacon Black, an unflappable bomb expert, and secretly convince him to disarm it.

Things go slightly awry when Deacon sets a trap for someone who is trying to kill him, and inadvertently, captures Marlee instead. Instantly intrigued by her refreshingly forthright and gutsy attitude, he's smitten. Unfortunately for Deacon, Marlee recently hardened her heart and swore off men, especially handsome ones with boy-next-door grins. But as Marlee and Deacon attempt to identify and prevent the bomber from detonating the device, they discover that love may be the most explosive force of all.