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.

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.

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.

Special Agent Meghan Connors's dream of one day protecting the president of the United States is about to come true. Only one assignment stands in her way. After the vice president's rebellious daughter is threatened, Meghan is assigned to her protective detail on a secluded ranch in West Texas. Unfortunately, working with Special Agent in Charge Ash Zinders may be as tough as controlling her charge. Ash has a reputation for being critical and exacting, and he's also after the same promotion as Meghan. Then the threats escalate and security on the ranch is breached....

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. 

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.

Kariss meets Dr. Amy Garrett, a woman who survived a brutal childhood attack in which the assailant was never found. Now Dr. Garrett wants her story written in a novel. Kariss wishes she could seek the advice of Special Agent Tigo Harris, but she broke off the relationship a few months prior and seeing him again would be too painful. She interviews Amy and conducts her own research, stepping unaware into a viper’s pit of danger.

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.

As an Arab Christian pilot for a relief organization, Paul Farid feels called to bring supplies to his war-torn countrymen in southern Sudan. But with constant attacks from Khartoum's Islamic government, the villagers have plenty of reasons to distrust Paul. American doctor Larson Kerr started working with the Sudanese people out of a sense of duty and has grown to love them all, especially Rachel, her young assistant. When Rachel is abducted, Paul, Larson, and Rachel's brother Ben form an unlikely alliance and execute a daring rescue, and their faith and beliefs are tested.

Tara Lancaster can sing Amazing Grace in three harmonies, two languages, and interpret it for the hearing impaired. She can list the Bible canon backward, forward, and alphabetized. And the only time she ever missed church was at seventeen because she had pneumonia and her mom made her stay home. But when her life shatters around her and her reputation is left in ruins, Tara decides escape is the only option. She flees halfway across the country to dog-sit, but the quiet anonymity she needs isn't waiting in her sister's house.

The Natchez Trace National Parkway stretches 444 miles from Nashville to Natchez, the oldest town on the Mississippi River. It's the perfect road for a relaxed pleasure drive. Unfortunately for park ranger Luke Fereday, lately it's being used to move drugs. Sent to Natchez to infiltrate the organization at the center of the drug ring, Luke arrives too late to a stakeout and discovers the body of his friend, park ranger John Danvers.

At the advice of her therapist, homicide survivor Harper Reynolds has traded her job as a crime scene photographer for a more peaceful life taking photographs of the natural world. But her hopes for a life surrounded by the serenity of the outdoors are dashed when she inadvertently captures a murder being committed in Jackson Hole, Wyoming. She flees the scene in fear - and loses the camera. 

Former FBI Special Agent Jack Tanner is working as a detective in Montana when he comes across a body in the national forest during a search and rescue mission. He's committed to finding the killer, even if it means working alongside his old flame, US Forest Service Special Agent Terra Connors. When Terra discovers that the murder victim had ties to a powerful and dangerous trafficker of archaeological artifacts, the investigation takes a deadly turn - one that hits too close to home.

After a harrowing attempt on a judge's life at the courthouse, Deputy US Marshals Madison James and Jonas Quinn are tasked with finding a missing woman and an endangered child in connection to the murder of the judge's wife. What seems like a straightforward case becomes hopelessly tangled when the marshals discover that the woman they are searching for is in witness protection and the Amber Alert put out for the missing child has put two lives in danger. Madison and Jonas are forced into a race to find the woman and the child before the men who want her dead discover her location.

When police stop Dustin Webb with a warrant to search his trunk, he knows there’s been a mistake. He’s former military and owns a security firm. But he’s horrified when the officers find explosives, and he can’t fathom how they got there. Criminal attorney Jamie Powell was Dustin’s best friend growing up. They haven’t spoken since he left for basic training, but she’s the first person he thinks of when he’s arrested. Jamie knows she’s putting her career on the line by defending an accused terrorist, but she’d never abandon him.