When a group of soldiers decide to flee from the Napoleonic Wars, their journey home takes them through the Black Forest, leading them to a an ancient evil and a fight for their lives.

Set in war-torn 800AD Scotland, The Gaelic King tells the story of warrior-king Alpin mac Eachdach. When his young brother is captured, Alpin must hunt the kidnappers though a dark forest that hides an ancient evil.