Jeffrey Haywood wants to marry to Virginia Embrey. However, Virginia refused to marry unless her older sister, the hard-to-please Angelica gets married first. Angelica, in turn, finds every man she knows too dull and predictable, and for this reason prefers to stay single. Jeff then tries to make Angelica interested in the mild-mannered and timid Reggie Irving passing him off as a notorious playboy to intrigue her. He asks his friend Polly to teach Reggie “how to treat a woman right”, but he turns to be a disastrous learner.

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.

Melvin Martin and Calvin Cloy, two mountaineers, ask for the hand of Susie Sal, the prettiest gal in the mountains. Since it's proposal Sunday, Susie Sal gives the two mountain swains a task. To the first one who brings her a genuine mountain lion fur, she will give her hand in marriage.