The hero we've all been waiting for ... Ethan Ozzie Sykes, former Navy SEAL Underground operator for Black Knights Inc., the covert government defense firm, disguised as a custom motorcycle shop. In a black-on-black international mission that went seriously sideways, Ozzie was badly injured--now he's stuck at BKI headquarters in Chicago, champing at the bit to get out into the field again. To his disgust, he's tasked with distracting Chicago Tribune...

Dagan Zoelner has made three huge mistakes...The first two left blood on his hands. The third left him wondering...what if? What if he had told the woman of his dreams how he felt before his world fell apart? Spitfire CIA agent Chelsea Duvall has always had a thing for bossy, brooding Dagan. It's just as well that he's never given her a second look, since she carries a combustible secret about his past that threatens to torch their lives...

Returning to England, a former SAS officer and current BKI operator, Christian Watson must elude two dangerous killers with former CIA operator Emily Scott in tow and they both learn lessons about live and life on the edge as they fight to stay alive.

"Wild" Bill Reichert knows a thing or two about explosives. The ex-Navy SEAL can practically rig a bomb blindfolded. But there's no way to diffuse the inevitable fireworks the day Eve Edens walks back into his life, asking for help ... Eve doesn't know what to do when the Chicago police won't believe someone is out to hurt her. The only place to turn is Black Knights Inc- after all, no one is better at protection than the covert special-ops team....

Becky "Rebel" Reichert does not know what to expect when Frank Knight shows up at her door, asking to use her motorcycle shop as a cover for a special ops operation. Frank would prefer to keep the brash blond away from all things explosive, but when Rebel is taken hostage, Frank will do whatever it takes to get her back safely.

When unknown enemies threaten everything she loves, Michelle Carter is forced to turn to Jake Sommers, the man who chose his black-ops military career over her, for help in keeping her and her son safe.