Andre Norton made a lasting mark on the 20th century's fantasy and sci-fi scene. This is especially impressive considering that Norton, whose given first name was Alice, was writing in a male-dominated genre. The Defiant Agents follows up on the time traveling adventures described in the "Forerunner" series. Flavored by Cold War sensibilities, this audiobook takes listeners to distant planets where Apache volunteers are sent on a government mission.

Paul Boehmer, a 2003 Audie Finalist, brings a pulpy enthusiasm to his performance. In a voice both classic and "action hero", Boehmer's dramatic mastery of dialogue is especially compelling.