For Dr Doug Stein, vasectomies are more than a career – theyʼre an obsession. He’s determined to make sure this procedure is available to every man in the state of Florida (all seven million of them) and as many others throughout the world that he can convince. He goes to places no other vasectomist is willing to go, and he does so with unparalleled passion and commitment. A legend among doctors around the globe, Doug is not your typical urologist. In Florida he is famous for his billboards that loom across interstate highways promoting low-cost, scalpel-free vasectomies. For three weeks out of every month, Doug takes his practice on the road. Piling all his supplies into a mobile van, he performs vasectomies all over Florida, often at county health departments and Planned Parenthood sites for men who have no health insurance.

Urologen Doug Stein fra Florida er overbevist om, at overbefolkning er den største trussel mod menneskehedens overlevelse, og at det er tvingende nødvendigt at stoppe verdens befolknings tilvækst. Som en moderne Don Quixote rejser han derfor verden rundt og agiterer utrætteligt for, at mænd tager ansvar for familieplanlægningen ved at lade sig sterilisere. Undervejs støder han på mange fordomme og møder konservative og religiøse grupper, der anser familieplanlægning for at være lige så slemt som abort eller et slet skjult folkemord.