As each new crime-solving challenge presents itself, a scenario from the team's days in war-time Vietnam is revisited, relived and described in detail. As each war-time adventure progresses, it becomes more clear as to why the stateside crime reminds members of KC's team of the similarities between their past and present situations.
Their creativity in combat environments, discipline in adherence to professional standards and practices and determination to accomplish the mission at hand goes a long way toward answering the question of why these jungle warriors became crime fighters.