A prosecuting attorney Ted Jaffe who, twelve years after condemning a convicted murderer to death row, returns to the courtroom to save that same man's life.
FBI Special Agent Aloysius Pendergast calls upon his old friend New York police lieutenant Vincent D'Agosta for help when his brother Diogenes, a man driven insane by witnessing the burning deaths of his parents, goes on a killing spree and frames Pendergast for the crimes.
After his first host is killed in battle, Draycos, a warrior from a dragon-like, symbiotic race, is forced to latch onto teenager Jack Morgan to survive, whereupon the two join forces--literally--to find those who have wronged them.
Framed for a crime he did not commit, Jack Morgan seeks refuge on a distant planet, until a battle forces Jack into a relationship with the sole survivor, the dragon-like K'da, and the two must track down those responsible for the threatened destruction of the K'da.