Amidst a backdrop of growing violence and intimidation, independent cab drivers struggling against a consolidated juggernaut rally around hot-tempered Matt Nolan. Nolan is determined to keep competition alive on the streets, even if it means losing the woman he loves.

Nan Reynolds encourages her copywriter husband Bill to open his own agency. Nearly out of business, he finally gets a client. Former girlfriend Patricia Berkeley writes a very successful commercial for the client and neats up their old romance. Wife and girlfriend struggle over Bill.