An aging veteran burdened with a defender’s spirit. A relentless frontline that advances like a dark wave, threatening to engulf America. Will he muster the strength to protect those he cares for against the tide of war?

The gruesome death of a brother-in-arms slams Granger Madison like a kick to the gut. After the group's initial tactical retreat, the invasion has been unforgiving to the Acme Ranch residents and their battle-scarred Road Runner leader. But it's the harrowing news that his daughter has been caught in a violent riot back east that puts the first crack in the former Marine's stoic resolve.

Granger's fury becomes his forge, tempering a select group of green but passionate patriots into the capable Team Anvil. United, they join the war effort, fearing the worst… hoping to buy their families more time. But a grave event eliminates their most trusted army advisor, leaving Team Anvil dangerously close to the approaching enemy, vulnerable and responsible for a critical operation.

As the nightmare of survivor's guilt tightens its grip, he is faced with the ultimate test. Can Granger hold the line and stop the cycle of watching comrades fall? Or will he succumb to the haunting cycle of loss that seeks to claim his sanity?

Patriot Shield is the gripping fourth installment of the Blades of Grass war/pre-apocalyptic series. Join the battle that will determine the fate and soul of a nation.