In Red Horizon, Task Force Vigilant must go head-to-head with their most elusive adversary to date: a mastermind known as The Sentinel, whose influence spans continents. Led by Major Ethan Drake, the NATO strike team uncovers the Sentinel’s chilling endgame, Phase Abyss—a multifaceted plan to cripple NATO from within by coordinating attacks on Europe’s critical infrastructure and igniting unrest among its allies.

The team has triumphed over numerous rogue networks, but the Sentinel proves an exceptional opponent. Operating through encrypted channels and hidden proxies, the Sentinel has no physical base or digital footprint, making every move a challenge. With NATO’s stability at risk, Task Force Vigilant pursues their enemy to an unlisted fortress in Murmansk, Russia, an abandoned cold war relic turned high-tech operations center. As they infiltrate the stronghold, Vigilant races against time to prevent Phase Abyss from launching, battling elite operatives and automated defenses.

But the Sentinel’s endgame may go deeper than even Task Force Vigilant anticipates. Can Drake and his team neutralize Phase Abyss before Europe’s future is irreparably altered? Red Horizon is a gripping thriller that explores loyalty, resilience, and the lengths a team will go to protect peace against an unseen enemy. Mike Robb’s masterful storytelling takes listeners into a high-stakes world of shadow warfare where every second counts—and one wrong move could spell disaster.