The traumatized six-year-old boy hasn't said one word since the unsolved murder of his single mother. And now, the killer is after the child - and the devoted uncle raising him, Dr. Dylan Seabrook. Working undercover in the boy's school, DEA agent Paige Ashworth is determined to find the murderer. But she can't tell Dylan her real identity, what she knows - or just how close to the case she really is. Dylan's strength and fierce love for his nephew soon have Paige longing to join their family. First, though, they must catch a killer who never wants little Alex to speak again.

Detective James Holton has been honorably discharged from the Army Criminal Investigation Division due to wounds sustained when an IED blew up near him. Now with the Lake City Police Department, he's rooming with his good buddy and partner, Cole, while he figures out his family dynamics. Physician Assistant Lainie Jackson is eighteen months out from an attempted murder perpetrated by her ex, which ended when she managed to grab the weapon and shoot him. When he appears to have survived and is back to finish the job he started, Lainie insists it's not possible.

Elite Guardian Charlie Lee knows that there is no future with the woman he loves—fellow Guardian Lizzie Tremaine. And, he gets it—as a single mom, Lizzie has to protect her daughter. But more than anything, he wants the chance to prove himself. Then, the unthinkable happens—while working undercover, Charlie is seriously injured…and his memory of the past four years is lost. Could it be the fresh start that he didn’t realize he longed for?

Elite Guardians bodyguard/former sniper Christina Sherman has protected uncooperative clients before—but this time, well, her client is bossy, headstrong, and occasionally eats off the floor. Yes, he’s a highly trained military working dog, but certainly her skills could be put to better use, right? Not according to former Special Forces Air Commando Grey Parker. He needs her help to protect his dog while he undergoes an experimental surgery that could restore his ability to walk.

When Marianna Santino's roommate is killed, Detective Ethan O'Hara can't fathom the motive. Then he realizes the deaf teacher was the intended target. Marianna must have something the murderer desperately wants. But what? Digging for the truth, the guarded cop tries to learn everything he can about Marianna. Her world. Her family. Her beauty, faith, and fierce independence. In spite of himself, Ethan finds that he can't keep his feelings at bay. Soon, he's willing to risk everything to lay the silent terror stalking Marianna to rest.