She never expected to fall in love with the enemy's brother. She's hunting his brother's motorcycle club. He's caught between loyalty and duty. Neither of them expected the explosive chemistry that would make them question everything. Axe King learned one rule in special protect your own. As an elite operator for Stone Ops, he lives by that code. But when Tessa Knight—federal agent and woman who sets his blood on fire—targets his brother, the line between duty and desire becomes a battlefield. For Tessa, taking down Australia's most dangerous criminals is a chance to prove herself. She never counted on Axe coming into her life, a man who makes her want to break every rule in her book. Caught between duty and desire, loyalty and love, they're both forced to question everything they thought they knew. Sometimes, the only way to save what matters most is to cross every line you've drawn. This steamy military romantic suspense features a protective alpha single dad, a strong-willed federal agent, explosive chemistry, and high-stakes action that will keep you on the edge of your seat.