FBI Agent Gardner Camden is an analytical genius with an affinity for puzzles. He also has a blind spot on the human side of investigations, a blindness that sometimes even includes people in his own life, like his beloved seven-year-old daughter Camila. Gardner and his squad of brilliant yet quirky agents make up the Patterns and Recognition (PAR) unit, the FBI’s hidden edge, brought in for cases that no one else can solve. When DNA links a murder victim to a serial killer long presumed dead, the team springs into action.

Danger lurks in the sleepy little town of Marathon, in the middle of the Florida Keys, as well as in the swamps of the Everglades. But danger doesn't expect to run into a man like Jesse. A man who will not only respond swiftly in facing it, but with a vengeance unexpected.

It’s a question everyone asks themselves, but few have to face in real life. English teacher Richard Boyle certainly never thought he would find himself talking down a former student intent on harming others, but when Mark LeDrew shows up at Richard’s school with a bomb strapped to his chest, Richard immediately jumps into action. Thanks to some quick thinking, he averts a major tragedy and is hailed as a hero, but not all the attention focused on him is positive.

On a steaming night in 1977, New York City is plunged into darkness and two boys, Joe and Robbie, are abandoned by their mother, Lois. Forty years to the day after this unforgivable moment, Joe is a hard-drinking ADA and Lois has resurfaced: Joe wakes from another alcoholic fog to learn she’s been found murdered on a Coney Island beach.

Sami Kierce, a young college grad backpacking in Spain with friends, wakes up one morning, covered in blood. There’s a knife in his hand. Beside him, the body of his girlfriend. Anna. Dead. He doesn’t know what happened. His screams drown out his thoughts—and then he runs. Twenty-two years later, Kierce, now a private investigator, is a new father who’s working off his debts by doing low level surveillance jobs and teaching wannabe sleuths at a night school in New York City. One evening, he recognizes a familiar face at the back of the classroom. Anna.