As a former smokejumper, arson investigator Bri Tucker knows her way around fires. But after a mysterious blaze takes the life of a former colleague, Bri inherits a curious puzzle from him that raises questions about several fiery deaths. Someone, however, doesn’t want her picking up where he left off in search of answers. When she teams up with ATF Special Agent Marc Davis to solve the puzzle, the case heats up—as does the attraction between them.

On the family’s Brazos River Ranch in Texas, Avery Elliott helps run her grandfather’s commercial construction business. Raised by Senator Elliott, Avery has never doubted her grandfather is the man of integrity and faith she’s always believed him to be . . . until the day she finds him standing with a gun over the body of a dead man. To make matters worse, Avery’s just discovered a billing discrepancy for materials supposedly purchased for construction of the Lago de Cobre Dam.

Ex-FBI profiler River Ryland still suffers from PTSD after a case went horribly wrong. Needing a fresh start, she moves to St. Louis to be near her ailing mother and opens a private investigation firm with her friend and former FBI partner, Tony St. Clair. They're soon approached by a grieving mother who wants them to find out what happened to her teenaged son, who disappeared four years ago. River knows there's almost no hope the boy is still alive, but his mother needs closure, and River and Tony need a case, no matter how cold it might be.

Private investigator Kenna Banbury lost everything two years ago at the hands of a serial killer. From the ashes of that encounter, she’s built a life she believes in, searching for the lost and forgotten all over the western US. When a series of murders drags her into an FBI investigation, Kenna finds herself back in the place where it all went wrong. Struggling to make sense of the case, Kenna’s past and present collide in a deadly plot that risks another betrayal and threatens to shatter everything she’s built.

Heather Lawrence’s long-awaited vacation to Salzburg wasn’t supposed to go like this. Mere hours into the transatlantic flight, the Houston FBI agent is awakened when passengers begin exhibiting horrific symptoms of an unknown infection. As the virus quickly spreads and dozens of passengers fall ill, Heather fears she’s witnessing an epidemic similar to ones her estranged husband studies for a living - but this airborne contagion may have been deliberately released.

Matt and Elena Thompson present the picture of perfection. But their enviable life isn't all it seems. Their marriage is on the rocks, and financial disaster looms. Then Matt is killed in a hunting accident, and the questions and accusations begin to mount. Attorney Liz Acosta, newly arrived in the mountains of north Georgia after graduating from law school, plans to get some job experience on her resume before returning home to seek a position with a big-time firm.

Veterinary tech Pepper Miller lives a quiet life in Last Chance County. She’s watching her niece until her sister shows up...if she ever does. When Victory’s father demands he take over her care, Pepper knows something has gone wrong. With a new drug in town, and her sister embroiled in a dangerous bargain, it’s up to Pepper to protect the people she loves.

When Devon Thompson’s car explodes at the click of her key fob, she doesn’t want to believe she was targeted on purpose. But when the next bomb is found in her apartment, she can’t ignore the fact that someone wants her dead. Trusting Captain Rhyland Finnegan with the truth isn’t easy, but soon she realizes Rhy is an honorable man who will go above and beyond to keep her safe.

Police Chief Autumn Long is fighting to keep her job when an unexpected wave of violent crime sweeps through her small Alaskan town. Does Grier Carter, a relative newcomer to town, actually have her back? Or is she all alone as the body count rises?

Radio-talk-show host Eve Reilly is used to backlash from her pot-stirring on-air commentary and interviews. But now it seems a disgruntled listener is resorting to more than angry words to express their displeasure. When a suspicious package arrives on her doorstep, Eve turns to law enforcement for help. Police Detective Brent Lange can't find any evidence to link the string of unsettling incidents that follows, but he's convinced they're connected. As the harassment grows more menacing, it becomes clear someone wants Eves voice silenced - permanently.

EMT Freya Olson has lost her faith, but not her drive to save those who need her help. When the past that her family left behind after her mother's death shows up in Benson, Freya lands on the target list as well. But things aren't what they seem, and Freya’s loyalty will be pushed to the limit.

EMS helicopter pilot Penny Carlton is used to high stress situations, but being forced to land on a mountain in a raging storm with a critical patient - and a serial killer on the loose - tests her skills and her nerve to the limit. She survives with FBI Special Agent Holt Satterfield's help. But she's not out of the woods yet.

After a whirlwind romance, Taryn Young is preparing to board a plane at Houston International Airport, bound for a dream honeymoon, when a bomb decimates the terminal. Injured but still alive, she awakens to discover her husband is missing, and they're both considered prime suspects in the attack. Further, the FBI is convinced her husband isn't who he appears to be. Agent Grayson Hall's number-one priority is to catch those responsible for the day's act of terror.

To the FBI, it's a cold case. To Kariss Walker, it's a hot idea that could either reshape or ruin her writing career. And it's a burning mission to revisit an event she can never forget. Five years ago, an unidentified little girl was found starved to death in the woods behind a Houston apartment complex. A TV news anchor at the time, Kariss reported on the terrifying case. Today, as a New York Times best-selling author, Kariss intends to turn the unsolved mystery into a suspense novel.

There's a killer on the loose in Galveston, targeting law enforcement officials and using a fatal injection of snake venom to take them down. Authorities have reasons to believe the Veneno gang is behind the hits, and FBI agents Leah Riesel and Jon Colbert team up to track down those responsible. Their best lead is an eyewitness who identifies a young man dumping the third body on a church doorstep. But their suspect has gone into hiding, and those closest to him are reluctant to reveal anything that might help investigators find him.

On the family’s Brazos River Ranch in Texas, Avery Elliott helps run her grandfather’s commercial construction business. Raised by Senator Elliott, Avery has never doubted her grandfather is the man of integrity and faith she’s always believed him to be . . . until the day she finds him standing with a gun over the body of a dead man. To make matters worse, Avery’s just discovered a billing discrepancy for materials supposedly purchased for construction of the Lago de Cobre Dam.

Hostage negotiator Carrington Reed is called to the scene when reports come in that fifteen hostages are being held by the Kendrix brothers in an abandoned house in south Texas. When she arrives on site, Carrington quickly learns that the brothers are armed and refuse to release their victims, a group of undocumented immigrants, until the local police identify their father’s murderer. Working closely with Levi Ehrlich, a handsome investigative reporter who has covered some of Carrington’s negotiations in the past, she finds herself being undeniably drawn to him.

Fifteen years ago, Shelby Pearce confessed to murdering her brother-in-law and was sent to prison. Now she’s out on parole and looking for a fresh start in the small town of Valleysburg, Texas. But starting over won’t be easy for an ex-con. FBI Special Agent Denton McClure was a rookie fresh out of Quantico when he was first assigned the Pearce case. He’s always believed Shelby embezzled $500,000 from her brother-in-law’s account. So he’s going undercover to befriend Shelby, track down the missing money, and finally crack this case.

There's a killer on the loose in Galveston, targeting law enforcement officials and using a fatal injection of snake venom to take them down. Authorities have reasons to believe the Veneno gang is behind the hits, and FBI agents Leah Riesel and Jon Colbert team up to track down those responsible. Their best lead is an eyewitness who identifies a young man dumping the third body on a church doorstep. But their suspect has gone into hiding, and those closest to him are reluctant to reveal anything that might help investigators find him.

Airport Ranger volunteer Stacy Broussard expected a peaceful Saturday morning ride around the perimeter of Houston's airport. What she encounters instead is a brutal homicide and a baffling mystery. Next to the body is an injured dog, the dead man's motorcycle, and a drone armed with a laser capable of taking down a 747. Though FBI Special Agent Alex LeBlanc sees a clear-cut case of terrorism, his past has taught him to be suspicious of everyone, even witnesses. Even bleeding-heart veterinarians like Stacy.

Christian O’Brady was pulled into a life of crime at a young age by his con artist parents. Now making amends for his corrupt past, he has become one of the country’s foremost security experts. When a string of Southwestern art heists targets one of the galleries Christian secured, he is paired up with a gifted insurance investigator who has her own checkered past.

After a whirlwind romance, Taryn Young is preparing to board a plane at Houston International Airport, bound for a dream honeymoon, when a bomb decimates the terminal. Injured but still alive, she awakens to discover her husband is missing, and they're both considered prime suspects in the attack. Further, the FBI is convinced her husband isn't who he appears to be. Agent Grayson Hall's number-one priority is to catch those responsible for the day's act of terror.

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.

In college, Griffin McCray and his four best friends had their lives planned out. Griffin and Luke Gallagher would join the Baltimore PD. Declan Gray would head to the FBI, and Parker Mitchell would go on to graduate school as a crime scene analyst. But then Luke vanished before graduation, and their world - and friendships - crumbled. Now Griffin is a park ranger at Gettysburg, having left life as a SWAT-team sniper when a case went bad.

Paige Rogers is a former CIA agent who lost all she treasured seven years ago when her entire team was killed in a covert mission. She blames their leader - Daniel Keary - whom Paige believes betrayed them. Disillusioned and afraid for her life, she disappeared and started a new life as a small-town librarian. But when Keary announces his candidacy for governor of her state, he comes after Paige to ensure that she won't ruin his bid for office.

Ex-FBI profiler River Ryland still suffers from PTSD after a case went horribly wrong. Needing a fresh start, she moves to St. Louis to be near her ailing mother and opens a private investigation firm with her friend and former FBI partner, Tony St. Clair. They're soon approached by a grieving mother who wants them to find out what happened to her teenaged son, who disappeared four years ago. River knows there's almost no hope the boy is still alive, but his mother needs closure, and River and Tony need a case, no matter how cold it might be.

No sooner has Alexis Stone been sworn in as the interim sheriff for Russell County, Tennessee, when a serial killer dubbed the Queen's Gambit Killer strikes again—this time in her hometown. Pearl Springs is just supposed to be a temporary stop along the way to Alex's real dream: becoming the first female police chief of Chattanooga. But the killer's calling card—a white pawn and a note with a chess move printed on it—cannot be ignored.

Reeling from a negotiation gone wrong, FBI Special Agent April Ramos is caught off guard when a frazzled young woman shoves a crying baby into her arms, then disappears. Worry for the child's safety quickly turns to fear when a man claiming to be the girl's father abducts them at gunpoint. April puts her hostage negotiation skills to use to learn more about who she's dealing with: Jason Snyder, a fugitive accused of murder. As Jason spins a tall tale about being framed for the killing of his business partner, April must sort through his claims to find the truth.

Every parent's nightmare comes true for Debra Patterson, whose children disappear from the entrance to a Houston mall when she dashes into the pouring rain to get their car. When Debra learns that her husband is also missing, apparently having taken the children with him, she feels her whole world is collapsing. Suddenly out from under her husband's iron fist, but very much alone, she must find new strength...and the path that will bring her children back to her arms.

Heather Lawrence’s long-awaited vacation to Salzburg wasn’t supposed to go like this. Mere hours into the transatlantic flight, the Houston FBI agent is awakened when passengers begin exhibiting horrific symptoms of an unknown infection. As the virus quickly spreads and dozens of passengers fall ill, Heather fears she’s witnessing an epidemic similar to ones her estranged husband studies for a living - but this airborne contagion may have been deliberately released.