Dr. Temperance Brennan and her colleagues at the Jeffersonian's Medico-Legal Lab assist Special Agent Seeley Booth with murder investigations when the remains are so badly decomposed, burned or destroyed that the standard identification methods are useless.

The peaceful countryside village of Solmen is savagely assaulted by wild Ungats led by bloodthirsty Magen. In the midst of battle, two baby boys are miraculously saved by a tribe of Amazon warriors known as the Kuniats. The warriors nurture and train the boys for future struggles. The stronger of the two is named , Gunan The Invincible. It is up to Gunan to avenge the annihilation of his people. Gunan stages a spectacular one man war of vengeance against his enemy the Ungats, but they prove to be a formidable enemy, and much bloodshed ensues.