Her years of research and sleepless nights are about to pay off ... if she can stay alive. Dr. Ivy Collins, founder and CEO of Hedera, Inc., is ready to begin clinical trials of her company's cutting-edge prosthetic. Her work has been praised by government, medical, and advocacy groups, and everyone hopes the device will be a success. Well, almost everyone. Someone is trying to sabotage Hedera and the launch, but to what purpose-and how far will they go to get what they want? Meanwhile, US Secret Service Agent Gil Dixon can't believe he's finally been reunited with Ivy, his childhood best friend. Now that he's found her again, Gil intends to mend their broken relationship. But it will take all his skill to uncover the truth in time to save Ivy's life, her life's work, and the innocent lives caught in the crossfire.
US Secret Service Special Agent Luke Powell is lucky to be alive. Three of his fellow agents have died in unusual circumstances in the past ten weeks. Luke is devastated by the loss of his friends and colleagues, and his inability to locate the killer feels like a personal failure. He and his team are experts at shielding others, but now the protectors are in need of protection. FBI Special Agent Faith Malone is driven to succeed and confident in her ability to solve every case she's assigned. She's been put in charge of the investigation into the unprecedented attacks, and with Luke's life in danger, the stakes have never been higher. But it's hard to know how to fight back when you don't know who the enemy is. Luke has teamed up with Faith before, but he's not convinced she's up for the job and she's not convinced he's telling her everything he knows. As more agents are targeted, Luke and Faith will have to learn to trust each other and work together to bring a killer to justice and prevent any more names from joining their fallen brothers and sisters on the Secret Service Wall of Honor.