A wall went up around Alex Brady's heart when his father, a New York firefighter, died in the Twin Towers. Turning his back on the only woman he ever loved, Alex shut out all the people who cared about him to concentrate on fighting crime. He and his trusty K9 partner, Bo, are determined to eliminate evil in the world and prevent tragedies like 9-11. Then the worst fire season in California's history erupts, and Alex faces the ultimate challenge