Maximum Threat

A Grant Valor Action Thriller, Book 4

By: Jack Mars

Narrated by: Clint Jones

From the #1 bestselling and USA Today bestselling author Jack Mars (with over 10,000 five-star reviews) comes a riveting new action thriller series. When the world comes under threat, an elite international team is called in, designed to handle the highest of stakes and led by former Army Ranger Grant Valor.

In MAXIMUM THREAT (Book #4), an explosive clash above turbulent waters forces Grant Valor and his international covert team to confront a heist like no other—a band of soldiers-turned-thieves assaulting an aircraft carrier to steal military secrets. Valor must match wits and warfare in this high-flying action thriller where each maneuver could be his last.

The Grant Valor series delivers an explosive and monumental thrill-ride, brimming with twists that will shock and awe you at every turn. With a band of unforgettable characters whose gripping saga will compel you to listen deep into the twilight hours, fans of Brad Thor, Tom Clancy, and Vince Flynn are sure to fall in love.

Future books in the series are also available!

©2026 Jack Mars (P)2026 Jack Mars