After being double-crossed and left for dead, a mysterious man named Walker single-mindedly tries to retrieve the rather inconsequential sum of money that was stolen from him.
Matt Helm is called out of retirement to stop the evil Big O organization who plan to explode an atomic bomb over Alamagordo, NM, and start WW III.
Mike, a biker, returns to California after serving in Vietnam. He uses his war-hero experience to organize a new, united super outlaw gang. When one member is shot by police because he killed a girl at a pot orgy, an all-out cop vs. biker war results.
