Mayhem’s Hero by Lindsay Cross

He needs someone to tell him he’s worth saving.
Diggs never mattered— not in his family. Project Mayhem left him with nothing but questions about who he is and confirmation that he can’t contribute to the team. He’s tired of being overshadowed by his brothers; Diggs needs something more… someone more.
She’s about to fall for the man who could hurt her more than anyone.
When Audra receives a cryptic message from her military brother that was filmed the day before he was killed in action, she knows he was involved in a secret operation gone wrong. His K-9 bomb sniffing dog, Trigger, has been left in their abusive father’s care. Audra races against time to save Trigger, and claim the one piece of her brother she has left.
A chance meeting. Diggs helps Audra save Trigger… but he’s the one who needs her the most.
Audra hates the military for taking her brother away, so loving Diggs isn’t an option. She can’t stand to get hurt again, yet Diggs is the only person who can help her piece together what happened to her brother. As they investigate the mystery, the chemistry between them grows even more intense until it erupts into steamy situations and longing professions of romance.
Diggs is Audra’s hero. But can she be his?