An Arthurian legend of young Prince Valiant, son of the King of Scandia. After the King is exiled by an evil leader, the Prince travels to Camelot to secure the aid of King Arthur in helping restore his family to power and prevent a plot by the Black Knight.

Famed forensic psychiatrist Dr. Jack Gramm enjoys a reputation as one of the most sought-after profilers around. His expert testimony has resulted in the conviction of many criminals, including serial killer Jon Forster. On the eve of Forster's execution, one of Gramm's students is murdered in a vicious copycat crime, and Gramm himself receives an ominous message informing him that he has less than 90 minutes to live.