In book four of the 'idiot spy' series, the adventure continues as the group expands and travels overseas to help the new members of its team combat threats to their nation, their families, and possibly humanity itself. What was initially a convenient opportunity to avoid an impending battle by leaving the country becomes a tactical decision necessary to escape Walter, aka Diablo, who vowed to stop at nothing short of the group's complete annihilation. Under the stalwart leadership of Benjamin "The Sarge" Beckmire, the group must once again band together to protect the Carbon Factor and each other, all while being stalked by an international caucus of assassins, terrorists, and crooked politicians. The squad must deftly evade their enemies-foes who are happy to conclude the existence of old Vietnam vets and their families for a lucrative payday-while reminding them that collecting that ransom has been a reward that few have enjoyed.