Nitro Wild continues the chronicle of a modern man endeavoring to survive on an alternate earth of 19th century technology, slavery, and competing colonial empires. Rex Knight, an Afghan War veteran, has been mysteriously teleported from a peaceful surveying project in West Virginia to the semi-lawless Appalachia on Erden where the Prussian and Ichneumon Empires are vying for dominance. Endangered by the clashing empires are Rex's friends, the indigenous Wapiti and an escaped slave, Amy Caroom, who is, among other things, his partner in a river steamboat and a machine shop. The non-human Ichneumon army is poised to ravage the Wapiti homeland when the winter ends. The Prussians are willing to help the Wapiti, but lack the means to stop the Ichneumon armored riverboats. Complicating matters for the Prussian army is the threat of rebellion by the slave owners in their territories over the emperor's edict outlawing slavery. Rumors of a coup d'état in Berlin are rampant. The Mongol Empire on Prussia's eastern border is furious over the stopping of the slave trade and threaten war. The Ichneumons sense opportunity to deal their rival a knockout blow. Their army will help the rebellious plantation owners seize control of the Prussian territories along with the Wapiti homeland. Rex will need all his wits, shrewdness, audacity, and even duplicity to survive and protect his partner and friends.