Good Guys Wear Black (1978)

Synopsis
Chuck Norris plays John T. Booker, a Vietnam vet who finds out that several of his army buddies lost their lives in a mission that was intended to fail. Seeking answers, Booker quits his school-teaching job and tracks down the surviving members of his unit. One by one, his old friends are being knocked off by sinister forces, orchestrated by a crooked, and legally untouchable, politician. Amidst a plethora of martial arts, gunfire and explosions, the film briefly pauses for a comic-relief scene involving over-aged bellboy Jim Backus. Good Guys Wear Black did so well at the box-office that it warranted a sequel, A Force of One (1979). ~ Hal Erickson, All Movie Guide