Agents from the FBI and Florida Department of Law Enforcement investigate a series of murders linked to conspiracy theorists and doomsday cults.

Years after their parents' murder, identical twin brothers, determined to clear one name at the expense of the other, ask Laura Moran and her Under Suspicion crew to solve this brutal crime and as they get close to the truth, they find the danger from the past finding its way into the present.

"When Hazel Sharp, daughter of Mirror Lake's longtime local detective, unexpectedly inherits her childhood home, she's warily drawn back to the town--and people--she left behind almost a decade earlier. But Hazel's not the only relic of the past to return: a drought has descended on the region, and as the water level in the lake drops, long-hidden secrets begin to emerge ... including evidence that may help finally explain the mystery of her mother's...

While visiting Angela, one her protégées in Kansas, V.I. Warshawski, when Angela's roommate goes missing and V.I. finds her near death in a drug house, is pitched headlong into the country's opioid crisis and a local land-use battle with roots going back to the Civil War.

Rebel surfer-turned-field ops specialist Sydney finds herself in hot water while undercover on a marine research vessel, while her City Spies teammates investigate a suspected mole.