After testifying in a high-profile case, Gemma Saint, a young intern at an influential media outlet, is forced into WITSEC by corrupt DOJ officials to silence her when Gemma’s testimony at a retrial threatens their elaborate conspiracy to control the upcoming presidential election. Gemma learns from her WITSEC inspector that her identity was compromised and someone in the DOJ has sent a team to kill her. After her inspector is shot, Gemma sees only one chance to survive and resume her old life—expose the conspiracy, completely.

FBI Special Agent Jesse Marx doesn’t know which is worse—waking up in a horse stable with no memories of the past several days or waking up to discover he’s wearing a wedding band. Not only has he been injured, but he’s also gotten hitched—something he vowed never to do.

Disgraced attorney Andi Slade is seeking justice for the killer who destroyed her reputation and her career. But going undercover as an ice road trucker in Alaska to find answers is just the tip of the iceberg. A brutal snowstorm, a handsome stranger, and an unsolved cold case send Andi's plans into a tailspin. Former CID investigator Duke McAllister refuses to give up searching for his fiancée who disappeared two years ago on the Dalton Highway. When he rescues a woman on the side of the road, he knows just how much danger she’s in.

Fifteen years after a serial killer tormented them, Addie and Jacob are living very different lives. As an FBI Profiler, Addie is on the edge of burnout. When she returns home, she has to face down every nightmare she's ever had. Is the resurgence of a series of all too familiar deadly crimes the work of a former ally, or a mastermind who has been pulling her strings all along? 

Dr. Meiling Chen, a brilliant young virologist from the Hong Kong Medical School, is on the verge of a major breakthrough for manipulating the entire class of RNA viruses that would make gain of function hardly more than child’s play. She is offered an attractive postdoctoral fellowship at the Wuhan Institute of Virology to complete her work, and she accepts.