BOOK VIII: IN DANGER'S PATH BOOK IX: UNDER FIRE.

BOOK X: RETREAT, HELL!.

BADGE OF HONOR.

BOOK I: MEN IN BLUE.

BOOK II: SPECIAL OPERATIONS.

BOOK III: THE VICTIM.

BOOK IV: THE WITNESS.

BOOK V: THE ASSASSIN.

BOOK VI: THE MURDERERS.

BOOK VII: THE INVESTIGATORS.

BOOK VIII: FINAL JUSTICE.

BOOK IX: THE TRAFFICKERS.

(and William E. Butterworth IV) BOOK X: THE VIGILANTES.

(and William E. Butterworth IV) MEN AT WAR.

BOOK I: THE LAST HEROES.

BOOK II: THE SECRET WARRIORS.

BOOK III: THE SOLDIER SPIES.

BOOK IV: THE FIGHTING AGENTS.

BOOK V: THE SABOTEURS.

(and William E. Butterworth IV) BOOK VI: THE DOUBLE AGENTS.

(and William E. Butterworth IV) PRESIDENTIAL AGENT.

BOOK I: BY ORDER OF THE PRESIDENT.

BOOK II: THE HOSTAGE.

BOOK III: THE HUNTERS.

BOOK IV: THE SHOOTERS.

BOOK V: BLACK OPS.

BOOK VI: THE OUTLAWS.

(and William E. Butterworth IV).

BOOK VII: COVERT WARRIORS.

(and William E. Butterworth IV).