1818: In the Gulf waters off the Texas coast, the pirate Jean Lefitte and his partner Jim Bowie launch an attack on the Mother Mary, a slave ship carrying an invaluable treasure. The Present: Fifth-generation Texas Ranger Caitlin Strong finds herself investigating the murder of the oil rig crew that had found the long-lost wreckage of the Mother Mary. Caitlin Strong, a fifth-generation Texas Ranger, sometimes works as a psychological therapist, in...

A Mexican girl on the run from human traffickers brings fifth-generation Texas Ranger Caitlin Strong to the sleepy border town where her legendary grandfather once worked, a region that hides a deadly weapon with a potential to give a new enemy the means to terrorize the United States.

"A new enemy has surfaced in Eastern Europe in the form of an all-powerful organization called Black Scorpion. Once a victim of human trafficking himself, the shadowy group's crazed leader, Vladimir Dracu, has become the mastermind behind the scourge's infestation on a global scale. And now he's set his sights on Michael Tiranno for reasons birthed in a painful secret past that have scarred both men. [...] Black Scorpion has also taken the woman Michael...

Texas Ranger William Ray Strong teams up with Judge Roy Bean to track down the Old West's first serial killer, who is stitching a trail of death along the railroad lines slicing their way through Texas.

Caitlin Strong is a fifth generation Texas Ranger as quick with her wits as she is with her gun. Over the years she's taken on all manner of criminals and miscreants, thwarting the plans of villains to do vast damage to the country and state she loves. But none of that has prepared Caitlin for an investigation that pits her against ruthless billionaire oilman Calum Dane, whose genetically engineered pesticide may have poisoned a large swath of the...

Fifth generation Texas Ranger Caitlin Strong pursues a killer who eluded her grandfather more than half a century earlier, a case that reveals a conspiracy connecting a World War II-era Nazi POW camp and a modern-day neo-Nazi gang.