A high-intensity military thriller by Brian Andrews and Jeffrey Wilson. It is the first book in the acclaimed Tier One series and follows former Navy SEAL John Dempsey.

After a devastating terrorist attack leaves him severely injured and ends his military career, Dempsey is recruited into a secretive U.S. counterterrorism unit known as Tier One. Operating outside conventional military structures, the team is tasked with confronting threats too dangerous and politically sensitive for standard forces.

As Dempsey undergoes a grueling transformation and returns to the fight, he becomes involved in a global mission against a sophisticated terrorist network planning catastrophic attacks. The novel combines elite special-operations action, espionage, cutting-edge technology, and geopolitical intrigue.

Fast-paced and highly realistic, Tier One benefits from the authors' military and operational backgrounds, delivering authentic combat scenes and tactical detail while maintaining relentless suspense.