There are two sides to American history. There’s the boring side that’s been taught to you by history textbooks and schoolteachers. And then there’s the other side where, as it turns out, America is actually littered with ruins of ancient and alien civilizations (at least west of the Mississippi), where mad zombie scientists seek to overthrow the world, and where horrific demigods lay imprisoned within vegetables, patiently waiting to be freed from their parallel universe prisons to lay waste to Mankind.
The only bastion of defense against these horrors is Screw-On Head, a secret government operative at the beck and call of Abraham Lincoln (yes, that Abraham Lincoln), and who is, well, a screw-on head with an army of steampunk bodies at his disposal. And he’ll need them all, because the nefarious Emperor Zombie—once Screw-On Head’s closest friend and manservant before he began dabbling in ancient black magic—is seeking the power of an ancient kingdom to bring the world to its knees.