The Unsung Hero by Suzanne Brockmann 99 cents! Great book!
After a near-fatal head injury, Navy SEAL lieutenant Tom Paoletti catches a glimpse of an international terrorist in his New England hometown. When he calls for help, the Navy dismisses the sighting as injury-induced imaginings. In a last-ditch effort to prevent disaster, Tom creates his own makeshift counterterrorism team, assembling his most loyal officers, two elderly war veterans, a couple of misfit teenagers, and Dr. Kelly Ashton. As the town’s infamous bad boy, Tom was always in love with Kelly, a sweet “girl next door” who has grown into a remarkable woman. Now he has one final chance for happiness, one last chance to win her heart, and one desperate chance to save the day.