O'Hara poses as a drifter and joins a small band of flower children in the desert. He must undercover the location in a nearby city where they planted a bomb and are extorting $200,000 from a publisher.
When a professional sports bettor's wife tells O'Hara her husband might be a tax evader he investigates. He finds a world filled with people on the make and who don't brag about their winnings.
While probing for evidence of Federal income tax violations Jim O'Hara runs afoul of a small town power broker and becomes the target of veiled threats against his life by the citizens of a small town.